Ok well after having a good look through the tiny amount of game files we currently have access to for modding I wanted to let anybody who isn't into modding know a few things about what is already in-game but currently just not working. This should be taken as a promising sign as each of these features is already laid out and for the most part even already keymapped for the game. This means they could be made avaliable via a patch without hardly any effort on CM's part.

1: Leaning - Yes it appears leaning for the player is actually in the game. Currently mapped to keys 9 and 0 on the keyboard.

2: Freelook - Yes its there, freelook for pilots and drivers is implemented already, although at present its actionmapped for a controller using the left analogue stick

3: Third Person - Its there as a debug option, using numpad key 8. Could be made to work quite easily if CM decided to add that feature.

4: Cover System - There is an extra stance modifier that appears to have something to do with a cover system. At the moment its mapped to the keyboard "End" key. I am not sure if this is in the style or RainbowSix or simply some other kind of cover system but its in there.

Anyway thought I would just mention it for anybody that hasn't been through the game files. Any of these 4 things could feasibly make it into the game via a patch. Unfortunately without access to the backend code or without it being patch its not possible for modders to add these in the current state of modding with this game.