zanshin, I've had another read with more time in hand.
I think that this is more complex than I'd use, and agree with ProfGremlin that some of the Cries are too powerful. I'd consider limitations on range or number of creatures affected, higher WIZ costs, or restrictions on number of uses (once per battle, once per full turn, once per hour, etc.). I like that they (by my reading) can only use the Cries in battle, so they can't heal their allies after combat.
A late-arriving thought: this Type strikes me as in some ways a little like a Bard in later versions of That Other Game (TOG).
In any case, I think that what you have done is Exalt-worthy, regardless of whether I'd personally use it.
* powers up Tesla coil array linked to Exaltorator *
In terms of types, the Captain is probably a Warrior-Wizard sub type - a warrior with so much charisma that they can power magical changes in the heat of battle. Their small armour bonus is a nod to that.
There are not massive disimilarities with Bards (in whatever game, tabletop or otherwise), but I wanted a war leader flavour.
I appreciate that some have found it overly complex. I would welcome suggestions for tempering this.
In terms of power I have tried to keep the cry's less powerful than Wizard spells of equivalent level. The Captains ability to fight could be limited further by having their combat total halved when making a cry that permits fighting.
Thanks all for the responses and feedback. I'm glad of the positive reception.
Charisma rather than Wiz is a possibility - but I wanted not to add another layer of new rules.
I'm thinking of delinking the length of effect from the save made - so the effects (other than instant ones) last for 2 combat rounds, then can be extended by spending more points Wiz points, like a wizards spell.
The save to 'cast' is no different to the 7e Wizards casting.