yeah the thing has 2 main features
pro - you can fire "accurately" with lmg out of windows , over fences/sandbags etc. making them more usefull
contra - you dont need any supporting structure to use this. you can simply deploy the MG in midair firing with great accuracy making those kind of MG even more badass than rambo with 2xM60 akimbo-mode.
the system we have now has it flaws by dissallowing the "heavier" MG34/MG42/lewis/breda to fire standing and using cover better. but it also prevents them from beeing total rambo guns.
I beg to differ, I coded the guns in the OP's Video, contrary to belief, it takes not only a long time to get in and out of the zoomed "deployed" mode, but while you are in that mode you are VERY, and I say that lightly, VERY slow, aiming is slowed, movement is slowed, and it makes zooming in out in the open a death warrant, because you slow down instantly, not after you are zoomed, but instantly. So you can stand there for the 1 and a half seconds or whatever it was out in the open waiting for the bipod to deploy, but its not recommended as you are effectively a sitting duck.