Well, as i commando im pretty much fcked. Groups now soldier-heal, heal over time from ff and as a bonus they share multiple shields (as if shared heals were not enough). From point when i could take one down and retreat, i would need three-four shots to take down single opponent!!
Lets count an average group of gunner+soldier at same levels (they have lower heals, you dont have PS high enough...)
Also lets assume that they are not complete morons and manage to activate abilities on time, also assume i can hit every shot to my intended target head and he cannot find cover.
Round 1
120(160) hp - 75(headshot with slow rifle and PS 5)
Round 2
45(85) hp + healed 50(64) hp - 75
Round 3
20(74) hp + 60 shield - 75
Round 4
5(59) hp -75, kill
So i would need 4 absolutely perfect shots in rapid succession to make a kill...and lets face it, who can do 3 headshots + 1 hit in a row. Taken into account healing capability of FF, gunny may need 4 headshots + 1 anywhere.
Group of 3(any combo) becomes immortal, no matter how awesome your aim is. Im not even mentioning that they can also shoot + move behind...
Also two gunners will be invulnerable by tanks (any number) by just switching I eat grenades and Shield in turns.
So, only way to kill 2 gunners an soldier
1) 8 tank hits at once in blind window between one of the IEG´s (2 sec?)
2) concentrated fire of 3 commandos(assuming perfect aim) at extreme range(not to get mowed down instantly).
3) Equal group
4) Tactical nuke (provided gunned would not eat it too)
5) Roadkill at blind angle (BS negates)