Numerous Issues with SFAR/MGL and other weapons

The SFAR has a lot of problems that i hope can be fixed, as i like the weapon but there are too many annoying issues preventing its use.

When leaving a vehicle with SFAR equipped, you will not be able to ADS with any weapon. This only seems to happen when sfar is your primary
When leaving a MAV with SFAR equipped You will sometimes have extreme mouse lag and only be able to look left/right and not up/down and not be able to ADS
The Plus system is not available when in Grenade Launching mode, meaning you have to switch back to rifle to change grenades then back to MGL to use it
Ammo Crates do not resupply SFAR grenades. This was done to reduce grenade spam but since the Ammo Box resupplies Regular Grenades and explosives like C5 and M5 recoilless it seems reasonable that ammo box would give one grenade for SFAR on a cooldown. The Loadout Box will allow you to resupply all grenades anyway, so this would be a bigger source of grenade spam anyway.

When firing the M44 Magnum Revolver if you fire and switch to another weapon quickly the rapidly swaying camera that happens when you fire the gun continues to happen while the new gun is equipped and causes the screen to bob/wave rapidly.