-1 seems a little broken to be fair
2ndAC field medics should stay in line with others as Zeros said. This however doesn't mean I don't think they shouldn't get some very very minor buffs to bacta injector as we commonly on the server have crazy amounts of people go down and medics scramble and a lot of people die but that's another discussion for another time.
2ndAC getting there pistols seems fine, I don't know why this doesn't exists as is.
Barlex's kit is a one man army. Id go look at other jet troopers that fill similar roles to what your proposing i.e (Nate, A'den). HVO's who have jetpacks all that is received in both of these kits that differentiate them from there squads is a plx-1 which is a very good rocket but that's it. Barlex on top of that droid poppers (idk who gets those anymore since 241st) another rocket launcher and a bacta injector. This gives off the vibes of the very old echo whitelist that was broken (medic, support, rc kit, arc kit) . Id suggest either the bacta, the droid poppers, or the launchers but pick just one. I like the idea of barlex as a hvo but just that. With the other things this kit may have just a dc 15a and a dp 24 but it still would blow Aden and Nate out of the water which would be barlex's counterparts as a airborne hvo. If this changes to just the two launchers even this will change to a +1.
P.S (Sorry for being so long-winded I just felt the need to go in depth)