Thanks for responding Hawaii, now as for the pistol in the holster thing. I'm positive I've seen that done in ArmA 2 several times, and assuming things haven't changed drastically to how it was accomplished in that game and then ArmA 3 it "might" be possible.
If memory serves it had something to do with proxies I think, but I can confirm that with a good friend of mine who's been modding the BIS series of games since OFP. He's fairly clued up on the technical side of things.