delay on X-bow vs bow, I've used both RL, you can get off 3-5 arrows in the time it takes to get off 1 X-bow bolt because X-bow takes forever to cock (granted, not with any particular accuracy).

Gear changes mid-fight, I've taught sword-fighting (and other weapons for that matter) for rennasaince fairs, SCA and the like; if you take the time to change armor between swings you'll be dead by the 2nd swing, not to mention some armor actually needs assistance to get on, particularily plate armor. On the other hand, if you have decent hand speed and agility you can change weapons pretty much without penalty.

Why can't we throw knives? Honestly, I have a dart board with 3 of them in it in my home office.

How do taru tanks work? Honestly, almost everything in the game can either step over them or pick them up and throw them into a tree...

This is a mideval world, wheres the smell, disease and whore-houses? Slaves? the 90+% illiteracy rate?

Why does everyone on 3 continents all speak the same language?

that'll do for starters...