@Armchair
I haven't been able to reply you in depth, i can list a few points.
1. Wheeled vs Tracked AFV:
a. Weight issue on wheels due to increased/extra armor.
b. Higher caliber weapon 125mm on wheeled AFV.
c. Mobility in the desert.
2. Effectiveness of 30mm, 35mm, 40mm or 76mm caliber.
a. Above mentioned calibers installed on IFV like CV-90 or Bradley. Considering that PA uses M-113 with 12.7mm as battle taxi only and why should M-113 be replaced by a tracked or wheeled IFV like Ratel.
b. Should MRAP capability become a standard in all future APC/IFV.
c. should ATGM be a standard on all IFV's.
3. Coming to combined arms; an independent armored brigade usually has armor, mech infantry, artillery and can get AD from Corps.
a. Its the division level where either its infantry or armored oriented. If the focus is on division, then its battalion or brigade structure should effective distribution of armor, infantry, artillery, air defence, aviation apart from support elements. Corps is already combined arms, Corps already has infantry, armor, artillery Divs or brigades.
b. In the division lay out of post 51, air assault or air borne formations are required foremost. Then the disparity between infantry and armor divs is too much. Pakistan needs more armor formations. Infantry needs APC or IFV battalions. In fact Infantry divisions should have at least one armored brigade, instead of a lone armor regiment covering 9 infantry battalions. Armor formations need not just Tanks, but SP Arty, SP AD, more IFV's/APC's. Increasing tanks doesn't help.
Okay, let me try to address each of them:
Wheeled vs. Tracked AFVs
I understand that the M113 has been used so far. The doctrine has been as a battle taxi. This is perfect for the M113 as it is made of aluminum and shaped charges will burn through them and set them on fire if used in a direct combat role.
If we are looking at a battle-taxi, then weight would not be an issue. A 6x6 at about 10-15 tons would be just fine for a wheeled AFV. Problem starts at about 30 tons for wheeled AFVs. This can be an APC that builds the core of your mechanized infantry battalions.
Regarding the Flex tank, which is essentially a hybrid of a tank and an IFV, the weight should not be a problem because the Rooikat design has been extensively tested in South Africa under very stringent and demanding criteria. For a long time the design kept failing the test until they perfected it.
Higher caliber gun - the Flex tank will use the South African 76 mm tank gun that was designed to be highly effective - designed specifically to destroy T-55 / T-62 tanks. Its a high velocity gun with a SABOT round. The Flex tank would also have 8x ATGMs similar to the Bradley which was highly successful at taking out enemy tanks including T-72s.
I also thought that some variants could get the 125 mm gun to serve what you described as LAT / HAT role. This should be possible, but will limit mobility, which is fine from the theoretical viewpoint of a LAT / HAT.
Mobility in the desert -
South Africa has tested and specially designed the Rooikat for the fine grained sand that is so impassible and difficult to deal with for tracked MBTs. Incidentally, this fine grained sand issue is also a problem for Pakistan's desert, where while foreigners think this is a place that can allow tank warfare, in actuality, the desert is very difficult and taxing for armor or any kind of mobility.
Ultimately - for both the AFV and the Flex Tank,
the proof is in the pudding. We would need to build such vehicles and test them - or purchase a few Rooikats and Ratels as rough equivalents and test them. Then see what works and what doesn't.
2. Effectiveness of 30mm, 35mm, 40mm or 76mm caliber.
a. Above mentioned calibers installed on IFV like CV-90 or Bradley. Considering that PA uses M-113 with 12.7mm as battle taxi only and why should M-113 be replaced by a tracked or wheeled IFV like Ratel.
PA should not replace the M-113 with Ratel at all. The wheeled 6x6 I'm proposing is a simple battle taxi, not designed to be used for combat, except the niche version - say for LAT or recon.
The doctrine of battle-taxi is sound IMHO. Imagine a simple, mass produced, low cost 6x6 with space for 12 combat equiped troops. I think we are in agreement here.
b. Should MRAP capability become a standard in all future APC/IFV.
I don't have an answer to that. Perhaps yes, perhaps no. There are technical issues with that and cost concerns. Perhaps we can see how the South Africans used MRAPs and why they chose the Ratel and the Rooikat to not be MRAP based.
Remember, a central theme of the strategic doctrine we have built is mass production. A simple, mass produced tank or APC will cost 3-10 times less than equivalents, due to economies of scale. So, that would need to be considered, whatever the decision may be after a technical evaluation
should ATGM be a standard on all IFV's.
ATGMs are precision munitions, which are a major disruptive technology reshaping the battlefield. If we are to maximize our advantage against IA, it has to be effectively incorporated into our doctrine and strategy, down to the tactical and operational levels.
However, I don't think it should be standard on all IFVs. Our major IFV is actually a hybrid IFV / Tank and that certainly should have ATGMs as standard, given we are going lower on the main gun caliber. However, if we are using a 6x6 APC as battle taxi, it makes no sense to put ATGMs as standard.
What do you think?
3. Coming to combined arms; an independent armored brigade usually has armor, mech infantry, artillery and can get AD from Corps.
a. Its the division level where either its infantry or armored oriented. If the focus is on division, then its battalion or brigade structure should effective distribution of armor, infantry, artillery, air defence, aviation apart from support elements. Corps is already combined arms, Corps already has infantry, armor, artillery Divs or brigades.
b. In the division lay out of post 51, air assault or air borne formations are required foremost. Then the disparity between infantry and armor divs is too much. Pakistan needs more armor formations. Infantry needs APC or IFV battalions. In fact Infantry divisions should have at least one armored brigade, instead of a lone armor regiment covering 9 infantry battalions. Armor formations need not just Tanks, but SP Arty, SP AD, more IFV's/APC's. Increasing tanks doesn't help.
At the highest strategic level, our most important units are probably going to be Corps or Corps sized units, given that in our battle plan, we have 38 odd divisions. However, at lower command levels, this doesn't mean the Corps will be king - the division and brigade will be king for them. Similarly, for a brigadier, the brigade and the battalions will be important. And for the lieutenant his company will be important.
Our aim is to make each level of command most effective and efficient. For this purpose, we have done the following:
1. Beefed up the Infantry divisions and infantry brigade with more tanks, IFVs, APCs, mechanized battalions
2. Beefed artillery with mobile 120 mm mortars, along with wheeled SPGs
3. Incorporated UAVs down to the brigade level.
4. Incorporate attack helicopters / CAS aircraft at the Corps level.
In the mix, even the battalion will find that it can call upon armor, artillery, air support better than ever before. Which is the aim.
You're right, just tanks will not help. We need a wide assortment of equipment. So far, in the plan outlined we have:
1. About 4000 APCs
2. About 4000 Flex Tanks (which are a tank / IFV hybrid as they can carry 4x soldiers along with the tank personnel)
3. 500 mobile mortar, basically the Flex chassis with a high velocity, recoiling 120mm mortar. This is actually an artillery weapon. Should give a range of about 20 kms. An Israeli weapon developed similarly provides accuracy and range.
Basically, this third element introduced is a contemporary equivalent of the Mongolian horse-archer, mobile, fast and with a ranged assault.
4. CAS aircraft 100 - 200 of them. For the first time as an integrated element within the armed forces. Basically you're taking a page from the US Marine Corps
5. We'd probably need about 10000 trucks. Here is where the 500 hp engine that will be the core of the Flex Tank / APC / truck / mobile mortar comes in. This mass produced engine will be the heart of the combined arms strategy.
I have only said we need wheeled artillery but haven't detailed or specified it properly. This is because I simply don't know enough about it, and don't have any good technical knowledge of it. Nor do I have any ideas about how this can be sourced or produced. But surely, mobile (wheeled or tracked) artillery is a key element.
I was just reading today about the Indian Artillery Division. That is a really interesting concept. Its basically the equivalent of the elephant units in ancient armies - a slow division that brings massive firepower.
Perhaps a place to start our research on how to bring about enough artillery to arm our 38 divisions can start by researching the Turkish position particularly their Firtina and to look at South African use of wheeled / motorized artillery.
About airborne assault brigade / division - perhaps you can help me understand it better - I don't know how it can be relevant without meaningful air superiority. The single mountain division we've specified, has air assault but this I imagine will have the cover of mountainous terrain in Kashmir. Perhaps you can help me understand how air assault brigades can be used in the open plains of Punjab and Sindh when IAF and India's IADs, as well as their considerable stock of SAMs will be all over us.
Jhungary - I will let you do your reading, it seems you think Pakistan is too small to do maneuver warfare, that India can gain air superiority over Pakistan, and that India has more than 43 divisions that it needs to mobilize. India actually only has 40 divisions. It can't mobilize more divisions than it has. I was being generous with 43, imagining that they would have expanded their army
in the future. If you're making up your arguments based on the information I'm providing, it wouldn't be meaningful for me to engage.