ok!
well, the general idea is that the heroic are basically divided in two main groups: lurkers and roamers...no, wait, wrong franchise...
the more "barbaric" adventurers, who accompany he-man in external travels/tasks and are more involved with sorceress and castle grayskull,
such as fisto, stratos, buzz-off, moss-man, teela, ram man, etc;
the more "civilized" soldiers, who acts as members of eternos military/rescue organization, and are basically divided in 3 main divisions (as
you already envisioned them): each division is based on he-ro's main spells, and each of the 3 generals keeps a ring (as a nod to those packaged with
trap jaw and triklops) containing a differently colored shard of the spellstone.
1. green army - protection
commanded by man-at-arms, who's also commander in chief, with the other 2 generals reporting to him
it's the bulk of the army
lt. andra takes the role of teela in commanding the royal guards
dawg-o-tor is the leader of the eternian marines (nod to the musashi ko)
2. red army - defense
commanded by mekanek (his "vision" allows him not also to see at great
distances, to find weak points and unveil illusions, and also grants him
photographic reflexes and physical movement prediction - a kinda mix
of marvel's taskmaster and karnak, give or take...)
his members are scouts, spies, snipers, sentinels, saboteurs
mek's liutenants are
rotar (scout/spy)
roboto (saboteur/sniper)
shield maiden sherrilyn (sentinel, guiding the red armored guards from dc comic)
3. purple army - healing (more generally, rescuing)
commanded by man-e-faces (he's not an actor, but a healer as human, an engineer
as robot, and a destroyer as monster)
his members are field medics, firefighters, military engineers
manny's liutenants are
snout spout (firefighter)
mo-larr - yes, not kidding! - (medic)
melaktha (military engineer, also architect and archeologist)
well, that's all, more or less: hope you like the description and maybe even find it useful.
cheers