Remathilis
Legend
Doesn't seem a lot to hang your hat on as far a subclasses, especially since most ended up "give X bonus from y stat to z roll". Hell, you could put all six into one and nobody would be able to tell which came from which. Not much as far as play-changing archetypes, like how different a champion, battlemaster, or ek play.tactical = lazier lord, int based bonuses to-hit
inpiring = bard, cha bonus to (T)HP
bravada = barbarian, reckless attack, enemies get advantage against you, allies get advanatge against enemies.
resouceful = variety, int or cha bonuses your choice.
insight = forget... wis bonus to...?
skirmishing = ranger, bow and movement granting
Again, 4e sub-classes where pretty shallow, only 1 feature, and access to few feats (which where much smaller in 4e).
Like a dragon sorcerer getting +cha to fire damage, and that's it.
To be honest, without resorting to 4e like discrete maneuvers, it don't see a lot for a warlord to do. Give a bonus to a roll or defense, grant extra HP, grant extra actions, or perform a martial maneuver like disarm. That's not much for a base class, not when a battlemaster or valor bard can do most of that. It's too thin a skeleton to hang a whole class.