Let's compromise; Can we just have Prone position? You can keep you bush suit, I just wanna lay down to shoot. I'm tired from humping 250 pounds of gear all over the Mojave. Almost makes mr wish for a nuclear winter. 

So, if they implemented a 'prone' positioning for our chars, what would be the advantage of that? Only way it would make any sense, is if they twinked the game to give you extra benefits from it, like steadier aim (no wiggle at all?) or being even harder to detect (extra stealth bonus of some kind). Personally, I don't see where either of those things is very much needed. And since FO is fond of taking something for everything they give, it would have to take you at least twice as long to get up from prone and move around again, to evade onrushing enemies.
Nah, I'll pass.