This build needs a lot of work.
It needs to be less race-based, and you don't want raycast guns to prevent spawn camping, as you just click and it instantly hits.
The theme should be more city-based, with high-rise buildings for snipers to snipe runners while they navigate the streets to detonate a bomb.
Better cover, and give the runners a weapon, not just health packs. Military snipers usually kill in one hit, though sometimes not, so the health is pretty much useless.