Advice on a build (Tom Clancy's The Division)

For such questions there is a special group of VC.

Just yesterday did the same build using a sniper like you
If you keep 90%+ headshots, it is still + -
And if you actually build shit and not playable in terms of low dps. Collect through the DeadEye sniper rifle, much better
On account of the assault it is difficult to say, personally, I'm farmleigh Urban MDR and want to test through it what happens there