hehehe, oh no the dreaded "b" word
Umm yeah I think the dust effect is confirmed, It was in a few posts a while ago, and yeah it is better than blood, and also historically accurate according to what Coriolis said, I think. Jumping would be a good idea, but not jumping around like a mad man like in Counter strike, no-one can jump that much. There should be a limit and also a stamina bar, once you drag it down to zero, you have to take a break, maybe animate the character having a drink from his canteen ?? and you have to crouch for a while to bring up your stamina, or something like that.