The idea is that when crouched, your soldier can place his arm out a bit and support the machine gun a bit more (meaning even a smaller little area to shoot). Some matches feels like you die too much for the machine gun's accuracy due to not having the bi-pod deployed. When I said the smaller area of more focus, I don't mean too much, but a little bit better than it is now.
So example:
Normal crouching machine gun-
* = bullet hits
l = wall
( ) = area in between bullets hit
l ( ****** )l
l ( ** **** ** * )l
l ( ** *** ** )l
With new "arm support" crouching-
l ( **** )l
l ( * **** * )l
l ( ** *** )l
Thanks!
So example:
Normal crouching machine gun-
* = bullet hits
l = wall
( ) = area in between bullets hit
l ( ****** )l
l ( ** **** ** * )l
l ( ** *** ** )l
With new "arm support" crouching-
l ( **** )l
l ( * **** * )l
l ( ** *** )l
Thanks!