Um, I don't think anyone takes double jumping for granted. If it's not accompanied by some visual flourish to try and explain it, it looks ridiculous as fuck (eg GoW).BigJiantRobut said:-Bullets transfer between magazines
-double jumping
-jumping up through platforms and then landing on them
-taking turns to fight
Edit: Actually I have one to add:
Ammo counters. In real life the only way to keep track of how much ammo you have left in a magazine is to count how many you've fired. Even if that little counter were to represent the "character's" own counting ability, it's still quite absurd that every gun welding muscle head we get to play as is a super genius with perfect counting and basic arithmetic technique.