Just my few cents. You say Cybie has armour 4?
Well then, take 3 SoG, 1SoB and he has no armour at all [:
And get some damage mods...
When I am fighting arachnotrons, I usually have SoG 3 and EE 3 (and Dualgunner). When I am lucky, I have some SoB and damage mods applied. What happens?
Arachnotros get pushed back. Usually, they are fast and manage to get back to my LoS, but then again, they get another portion of lead. If I empty my magazines, I take cover and reload.
This is how I play AoMr:
SoGx2
Dualgunner
EEx2
SoG
EE
SoBx3 (I do not know if this is the highest number)
Ironman (I do not take TaN, because of the arachnotron procedure I mentioned above)
Usually I max out Ironman and then Finesse. Usually when I get to this point, my character is very powerfull. And apply as many damage mods as you can!
Anyway, I wish for a game where I get my hands of Anti-freak Jackal before entering the Wall. Yummy!
But then again, I noticed, Anti-freak Jackal is not so cool, because you might accidentally destroy valuable items. And we really need ammo on AoMr!