
I did the math
This does 350 dps and you can fire it for less then five seconds before replacing the heat sink which means you have a little over 1400 of total damage plus the setting on fire damage. All of this can amount to nothing when you are attacked by a group.
The base Liberator rifle does 90 damage per bullet, it can fire 10 bullets per second so you have 900 damage if you land your hits and it has 45 rounds. If you include the average 60% hit rate then it would be between 500-600 dps.
The SG-Slugger does on average of 720 dps and roughly 430 damage at a 60% hit rate.
Now I am not suggesting some overblown buff but something reasonable like 450-500 dps because the setting on fire will make up the rest of the damage to compete with the AR-Coyote.
But 500 dps seems a bit much since it would have to apply to the laser cannon and that is basically a Scythe but you have 12 seconds and heavy pen.
So! I suggest that the Scythe get buffed to 480 and maybe the laser cannon but I am on the fence for that because it is heavy pen. Maybe 400 for the laser cannon.