MP5 is my goto as well, seems to have less kick than the UMP but I could be wrong...
I keep getting rinsed by the Beryl though and I do wonder what I'm doing wrong because when I use it the recoil on that thing has me shooting at the sky before I've killed what I'm aiming at.
In the same vein some dude took down 3 of our team with an MG3 from about 100yds away yesterday, that thing kicks like 3 Beryl's rolled into one so he must have been dragging down on the mouse like crazy...my skills in such area's fail me massively