after a few tests, this is my loadout. Legs are hardly shot(for a very good reason ), 50 is enough for them to not be worth to be blown off. Dakka side is the most targeted, no ammo in it. Right torso can store ammos since it's last target or doesn't matter if it goes anyway, and it gets more internals as protection, left arm is really useful to protect the dakka side and needs armor, right arm has less armor but a DHS and it's less shot anyway, I still put a T of ammo there to not store all of them in the laser side. If one doesn't like the DHS in the arm, it can easily be put in the engine. I would really like to have this mech on my account an master it, but no mechbays and no cbills and 3 banshees are really expensive if one doesn't like ammo explosions it's really easy to add a CASE : I don't like that both legs has less armor then CT in this loadout, but usually with 42 each it still won't matter.
I already wrote that I don't like it, it's for those who want a CASE and a STD320. With 50 of the first version, it is fine. And I prefer having it in the arms instead of having 29 there, given how good they are at shielding and side torso being first target.
My version. MLas only used when the AC2 are out of ammo or things like that. 12 DHS seems ok for the AC only. Obviously still need some balance between ammo/DHS/armor