When doing any single titan mod like ompas the barrel is allways kinda flimsy and its hard to shoot straight with a flimsy barrel. So you stabilize it. Theres many things you can do but I found this super effective and realy easy, not as messy as stuffing stuff around the barrel. This is hard to mess up. You just take a cap from a Vitamin Water bottle and viola! It clips on perfectly around the titans missle barrel. Just drill a hole in the center the width of the od of youre barrel material and its perfectly straight. Im sure similar bottle caps will work like ones on sobe life water, powerade, gatorade but im %100 sure Vitamin Water is a perfect fit.
As promised:

