MFB doing 40 direct with 120 burn for 160 per shot
You seem to think the DPS is the issue and that being brought down would fix the issue. But the boss DPS isn’t what people complain about.
For example, in a cata chaos horde with elites and trash (say 10 targets are within the AoE, 2 maulers, 4 marauders, and 4 fanatics) MFB will deal ~740 damage in a single shot, and kill everything.
Longbow might deal ~110 damage, killing nothing. Swiftbow might deal ~60, killing nothing. Hagbane might deal ~250 damage, killing nothing.
Extrapolation of the above data based on ammunition capacity: Longbow: 2200; Swiftbow: 3000; Hagbane: 4000; MFB: 3700.
Extrapolation of the above for DPS factoring time to deal that damage: Longbow: 110 dps; Swiftbow: 150 dps; Hagbane: 240 dps; MFB 740 dps. This data is important because it allows you to increase melee output as the ranged weapon need less time deployed in order to successfully deal with targets.
Extrapolation of the above based on up time of 25/50/75% for ammunition based weapons and 25% based on heat for MFB: Longbow: 27.5/55/82.5 dps; Swiftbow: 37.5/75/112.5 dps; Hagbane: 60/120/180 dps; MFB: 185 dps. Such as base/RV bags/big RV bags.
Extrapolation of reduced damage because long range specials aren’t going to be surrounded by crowds. This only affects the AoE based weapons. Dealing with 2 specials in 15 seconds: Hagbane loses 15% dps: 51/102/153; MFB loses 35%: 120 dps. Dealing with 6 specials in a minute, or 1 every 10 seconds: hagbane loses 28% dps: 43/86/129. MFB loses 26%: 137 dps.
Now take those numbers and apply Lanchester’s Law to find some projected combat efficiency at a rate of the power of 1.6, and assuming no RV ammo supply, such as a QP without him:
Longbow: 201
Swiftbow: 330
Hagbane: 411
MFB: 2623
Now can you see the issue? MFB isn’t just head and shoulders above, it’s an entire decimal place above!