It sounds like you're already using the big one I set up, then. The original Riot Surpressor was a thing that sat there, and shot out a few tiny bullets that had next to no travel time; in other words, it never hit anything. The bullet range was *very* short. The thing may as well have just been called a mine layer.
The version I made fires LOTS of small bullets, and they have a long range and thus cover a huge area, and have piercing. The central shot lasts awhile.
These shots and the main bullet are all yellow.
It is the energy weapon, yes. It costs 50 energy per use. Tends to be good against groups of things, kinda wasted if used just against single targets when there's other things in the room.
It's definitely supposed to be very strong, thus the cost. I may increase that number a bit though. But I dont intend on altering the effect of the shot. It's useful and fun right now.