Here is my hero unit list. Feel free to make suggestions or ask questions.
Republic:
Admiral Dodonna [space only]
Carth Onasi [space only]
Bastila Shan
Mystery Jedi
Various Admirals and Captains [space only]
Jedi Masters
Sith:
Saul Karath [space only]
Sith Lords [possibly some made-up ones, just to get some heroes]
Malak
Darth Bandon
Admiral Varko [pilots a corvette]
General Derred [super tank]
Mon Halan [[pilots a frigate]
Mandalorians:
Mandalore
[Mandos don't have many heroes, but they make up for it in special units]
Some special units:
Republic Agent [infiltrator-type role]
Mandalorian Super-commando[hard to kill, very powerful]
Jedi Hunter[Mando, and a sith version]
Mandalorian Scout-shock troops [jet-pack scouts]
Mandalorian Heavy-Shock troops [jet-pack assault troops]
Mandalorian Raiders [light raiding forces]
Republic Turret team [deploys like artillery, and sets up a repeating turret]
Republic Troopers [not like in swtor, but like the soldiers in the swtor timelines]
Republic Sith Hunters [force-pike anti-sith]
Sith Terrorist[suicidal mega-bomber]
