I don't care for Tactician - again, "officer," "marshal" and "captain" are all better in terms of 'military-sounding' names.
I'd LOVE to have a Strategist class, but not one with the Warlord's fight/inspire mix - I'd want it for characters like the Suikoden strategists, and to have a way to play the class without the character being physically present on the adventure. I have no idea how to swing that offhand, but it would be AWESOME.
Currently, the name I most favor is "Firebrand"; it's non-military, flavorful and evokes the image of someone who inspires others by word, deed and charisma rather than by magic.
It doesn't have the negative connotation of "thuggish tyrannical leader of mercenary scum" that "Warlord" has acquired (Travis Morgan and John Carter notwithstanding).