I dissagree with you on the Ghillie suit, if i remember correctly, Domination in Arma2 the default setup consisted of 3 sniper spots, alpha bravo and charlie, bravo was a special forces section so that had the normal type outfit which left a total of 2 ghillie slots to play with. You are making it seem like servers where flooded with people in Ghillie suits from the above points. I also dont see how it caused problems with FF, i played arma2 for many many months in a very active clan and also randomly jumping into pub servers, never once in my entire time have i had someone type "OMG GHILLIE SUITS need nerf!! they look like enemy, now if someone cannot tell the difference from a friendly in a ghillie and a spotter from an enemy, they are playing the wrong game, this is after all a simulator is it not?
Another point you made was there just not designed for this mission, again i disagree, some of the best squads i have played with who focus on the side missions while publics and alike focus on main target, what we would do is move in with a spotter and a sniper, and laser designate all the armored stuff, then when it was only infantry left, we would do our thing with the rifle.
If snipers would never be attached to a squad in RL then maybe add a recon unit to the mission? i mean i dont currently own a server so i cant excatly just edit files and play it how i like, but i know a huge chunk of the community love to play recon and love the ghillie suit.
I'm not trying to sound harsh with my response, just dont agree with much of your logic is all.