go 400 dpi (should be able to check dpi in setpoint software) and ingame sens to 2. Now this is going to **** you over for a couple days to get used to but this game aint about fastflicks to enemies, but about crosshair placement and using smart angles. Start practicing DM with these settings for a day or 2 so you get used to it.
And as said Dust2 imo is the worst to soloq at low ranks better of going inferno or cache
Just downloaded it actually and it's already set to 400, so I will just drop the in game sens and see how I get on!
Cheers for the tips guys