I wish they didn't go with simplified ammo. I know it's a small thing but I loved having to weigh the pros and cons of weapons based on the ammo they use, and I'll die a little inside every time I unload my M16 and shove those rounds into the AK-47 I just picked up. And seeing generic "pistol ammo" and "assault rifle ammo" is so immersion breaking - and this is a series that lives and dies off immersion.
But who knows. I might be dead wrong here and the slight dumbening down might help them attract a wider audience, in which case I'm happy for them. No matter what in the end I just wish them huge success after all they've gone through.