To get 162 kills in one game, it’s gotta be the AKM with green laser and angled grip.
For Metro, SCAR PDW with angled, green, and ARS.
For crane maps BFG with BT (yes, I am one of ‘those’ people) or RPK74 with angled and green.
Secondary is always G18 (+muzzle break and laser) with BFG
And Deagle with muzzle break for everything else. (Not Rex because you can get 8 rounds loaded in Deagle, while only 6 in Rex)