Managed to get all three collectible trophies in C3 this morning. Turns out the 15/16 was in reference to the amount of modules I'd unlocked, not upgrade kits I'd picked up. Maxing my last module was a pain though. I'd to kill 15 guys by hitting them with power-kicked objects but a combination of fcuk-all kickable objects and unbelievably broken physics make it cruel. I ended up hunting seven Cell troops through an old ruin with a fridge. Going room to room murdering them with it. The Ceph are even worse as they just wander off like retards. I had to chase a whole gang of them around a swamp with a pool table!!