Just some food for thought.
The reason why the squads had unique specializations for each of their members was because they were an independent group that usually only fought as those 4 members. So having a tech, eod, and medical trooper helps a lot.
Foxtrot isn't a squad, its a detachment of RC troopers who were a part of the 212th. They don't need specialized roles for their members because they are a part of a battalion that already has these specialized troopers.
Anyways, lore is dumb so here's a more server side reason why you shouldn't get these specializations.
You guys aren't SO BDE.
The only other group thats similar to you guys is Alpha ARCs, they have their unique loadouts however because they lost stuff to gain stuff.
You guys would only be gaining in this situation, and at that point you guys are basically right back to being discount SO BDE again without any of the oversight that SO BDE requires.
Also from reading some of what Comics has said, you guys are meant to be working with the 212th. Why the hell do you need an EOD, Tech. or medical trooper when you are working with usually the 2nd most populated battalion on the server?
-1 from me.