1, Juggernauts are supposed to be stronger than AO Enforcers. Even with a medic after their armour is gone they have a max of 500 health. Your acting like they are supposed to be equals, but at the end of the day CI will have much less people than Foundation does. Quality over quantity
2, Skill issue bro. M60 has bad range, but using it in close quarters doesn't change the fact it has terrible DPS, and with how hit-reg works M60 is just ass. M240B can be amazing yes, but M249 Para is far better at close quarters, which is where AO are most of the time, and if your not in close quarters an LMG, womp womp
3/4?
Thaum has 200 HP and 100 Armour, they also have 75 energy. The ARX normally 4 shots to the head and it fires fairly fast. This makes it a 6 shot, if you hit all headshots you cant react, and assuming the headshot multiplier is 2X then its a 12 shot. Thaums are supposed to have survivability, most of the time GOC will be far outnumbered. What your requesting is making a class with 4 AO slots, having each one have more health than a thaum
5, I aint in CI anymore, but from what i have seen the TBs on US CI have no innovation, there not good. Its rare I ever see the same dude on TB twice. Back in my day of CI, I gained many medals and merits from being able to kill hordes of MTF on TB. At the end of the day most TBs have a skill issue. There isnt really any way to change TB without either A: Killing CI population or B: Killing SOP Population