He was commander in Peshawar when APS happened. He could be seen clueless. This was gross negligence but he got rewarded instead, and landed at one of the most lucrative position in army!
Unless you have political connections and trust of political elite, you can't land on multi million $ printing post.
How the payments are made, it's no secret, UK/US will give visa to your in-laws, and they will open accounts and those accounts would start swelling, without any record of salary payments.
On Pakistan side, complicit regime would cover up, while lifafa jurnos. would continue acting dumb and assume that unjustified US/UK visas, later converted into green card were business as usual, while $ is hanging low on trees in UK /US and there's absolutely no way to trace the source of income of an individual living luxuriously in UK and US.
Pakistan is no more a sovereign state. It's blackhole where $ billions land monthly, in shape of loans from international lending banks and agencies, foreign /local aid, remittances from gulf etc..... but than all disappear into thin air, without generating a value worth penny, which if not evidence, but is a strong hint of what ruling elite is made up of.
Any one who question sanity in what's going around and point at THE mafia and it's operations, face victimization, police case, and eventually target killed.
Jobs, appointments, transfers, extensions, reinstatements, salary packages, protocols, official passports, UK/US visa, party tickets, even sacking of non compliant bureaucrats and early retirements... all are tools of making money.
Sooner the people paying taxes would realize, sooner they would be able to spot the mafias around.