[ODE] FPS Player again

[michael kapelko]

So capsule seems to be the only suitable way... but in all shooters I 
saw, the player is certainly not represented as a capsule, because if he 
has some item in his hand (gun), then collision occurs outside player 
and outside the gun. I can assume they use capsule with a large radius, 
but no, player can move through thin wholes, which is impossible with 
broad capsule. And, if a camera and a gun are inside capsule, the gun 
will collide only with the capsule, not with outside objects.
What to do?
Thanks.