Yes, it can carry 16 ATGMs, so typical payload could be 2 A-A missiles, 16 ATGMs and 30mm main gun. Or it can carry 8 ATGMs as well as 4 smart loitering ammunition systems(like Roketsan Alpagut). The design specs for the helicopter say that it will have a maximum load capacity of 1500kg. The total maximum take-off weight is 11.5 tonnes. This puts it at the top of the list of heavy attack helicopters currently in existence or under development. For example, the specs given for the AH-64E/F are 10.5 tonnes maximum take-off weight and approximately 1 tonne payload.
However, the ATAK-II platform will have quite unusual approaches too. There will be some missile types that will be developed specifically for this platform. Here, we can probably talk about drone-like loitering ammunition groups. In other words, we are talking more about BLOS and long-range engagement capabilities. It would be more useful to think of the helicopter as a part of the tactical network and one of the layers of network-centred warfare, rather than as an isolated system in the combat environment. For example, In modern warfare conditions, drone-assisted combat concepts have become an important field of study. Attack helicopters will also start to use the advantages of this.