I recently had a go at the multiplayer component of this game, in which I encountered a rather frustrating problem that occured more than once. At multiple times my equipped weapon disappeared, or rather, was holstered for an unknown reason. For example, I snuck up on some Rakshasa guy in the forest with my AK, only to have it disappear, or holstered, at the worst possible time, resulting in me getting killed by a friend of his. Despite me mashing my keybindings I couldn't get it up again in time, I just stood there without a weapon.
If I recall correctly I've seen the same thing happen in singleplayer, I think the weapon is holstered whenever you get close to something you can interact with, a climbable cliff for example. However, there were no such things close to where I fought the guy mentioned above.
Has anyone else encountered this at the worst of times? Am I missing something?