Well, does anyone here remember them old, old, old versions of OFP, when the M113's didn't have that guy on top of them, but rather just a low turret that swayed from side to side?
No?
Well, uhm. Maybe the fact you can't shoot the gunner is an old relic from that time. They did just overwrite the old model, neh? Maybe they didn't dare change it, in case the M113 was crucial for some mission and the new hit-model would've risked killing off the gunner in some random hail of bullets.
Or something.
Wolfrug out.