Perfect. A sniper, rocket, full grenades, and active camouflage. But to tap into the true power of the camouflage, let's go back in time.
Remember in campaign, when you used your flashlight to detect stealth elites? The point is, camoflage won't work as well in light.
So hide in the dark if possible, and if everything around is bright, hide so that the enemy has it with your background as the darker areas, and you will be the ultimate assasin.