Recoil - let the experiments begin.

Recoil in INF seems very unrealistic to me. It may be way better than any other game out there, but needs a lot of work. The only weapons I have good experience with are M-16, car-15, M4A1 with trijicon 4x and a haris bipod and M-24. I have some minimal experience with IMI negev (almost the same as the minimi) and the FN mag.
Right now in game it is too difficult to hip shoot with the minimi imo and too easy to shoot rapidly or full-auto with 5.56 when standing, yet a BIT too hard when moving.
So I started experimentig with what I can, and got results for 2 positions:
Crouch, 4 rounds, almost as rapid as full auto (the officer thought I was using full auto and made me stop shooting). Prone, 5 rounds, full auto.
Note the differnece where in crouch it went mostly to the right and a bit up while in prone it went mostly to the left and very little up. Probably because in crouch your right side of the body can be pushed back while in prone the stock slightly slides to the right so the barrel points more to the left. Those reasons are just a theory though. I'm a right handed shooter and was focused mostly on aiming the first shot and barely focused on handling recoil (since it's the first time I was testing very raid/auto fire when actually aiming the sights). Targets were at 25m.
Main conclusion you can see here is that recoil affects way more to the left/right and can go completely off to the other side in a different position.
Also when zeroing my M4A1 with bipod and trijicon 4x a while ago, every shot made it go way to the left as well, so it's possible that in prone as a rule the recoil will make your weapon turn to the left.
With M-24 I can't really talk much about recoil because I didn't really cared about it when I fired, both because it's a bolt action, and that the recoil usually makes you blink because the scope gets kicked quite close to your eye and you're trained to reload immidiately after firing so you don't really get a chance to see the effect. I hope I'll have a chance to make experiments with M-24, but that probably won't happen. With M-16 and car-15 I should be able to experiment sometime in the future, and maybe even with a reflex sight (ITL MARS, Meprolight and or Elbit falcon reflex sight) to see how they work when firing rapidly (had a chance to play around with them, just not fired with them).
Another unrelated recoil problem I found in game is that the M4A1 "jumps" way less than the M16A2, which makes absolutely no sense.

I hope more people who can will make experiments to help make the reoil system in INF actually real and make people stop spraying full auto with minimal recoil.

It's quite perfectly straight up, or at least unnoticeably close. Which is far from the way it is IRL.
As for disaligning the sights, 5.56 recoil barely disalign the sights and it's natural to realign them. It is not natural, however, to aim left after the recoil offseted you to the right - you move it back as a reaction after you see where the recoil offseted you.
As for animation of gun moving backwards, it moves backwards then back to normal real fast you can't notice it IRL as well. The only reason you know it happens is that when you're new to using the weapon or when the recoil is strong (like M-24) it often would make you blink as a natural response for something getting close to your eye in high speed

Realistic recoil should be the main thing that makes it impossible to do very good groupings with full auto.
As for injuries, it should be a different thread, but I know some1 who got shot and the bullet hit his NV sight he had in his back pouch and it didn't penetrate (didn't even reach the lvl3 vest). If I get a chance to talk to him I'll try to get more information.

It was stopped. It was a pretty well-placed shot in the top-center of his back, where the pouch is and the NV sight is held during daytime.

M16A1 fullauto is the 2nd picture (and 1st picture is semi but very fast almost like fullauto). I didn't fire M4A1 in fullauto, but unless the different flash hider has a significant effect, it should be quite the same. If the effect IS noticeable, it will rise up less but left/right movement will be the same.