Hi there.
First I have to tell that english is not my first language, so please forgive me for grammar errors ^_^'
I have played Ironsides since a month more or less and i'm finding her quite good at buffing her crew standing there and pushing my own models abusing of Ya lookin' at me and its trigger.
I found that in games where I tried to use her as a tank to engage enemies, she tend to non doing much other than consuming ss and being killed. When I try to use her more conservative she win my games.
At the moment I'm using quite the same crew, basically:
Toni: Challeng the crowds, warding runes, message from the union/arcane res. Cache 6/5 ss
Firestarter: warding runes, imbued energies
Johan: imbued energies
3 oxfordian mages with temporary shields and wards
2 gunsmiths
I find this kind of list has a great killing power, but tends to being in a "bubble" (obvously). The list itself has a terrifying ability to deal with armoured crews and constructs (1 relic hammer + FIVE model s able to ignore armor).
Toni usually doesn't much other than repositioning herself and gunsmiths (to make them fast)/mages.
The real star of the list is The firestarter; in the first turn he burns a little the gunsmiths and/or johan, then becomes a real fast scheme runner (the only dedicated one of the list) even thanks to regeneration + recless (+ w.a.). The only one who can go outside the bubble without much complains.
Johan is just too good with a full M&SU crew to not list him. A lot of positive flips and a situationally good heal (never happened to prefer this over his hammer, btw).
Gunsmiths are the muscle of the list. They do A LOT of damages and are quite survivable.
Mages are really good with the new upgrade. The third is realy a bit redundant, but hey, for 3 poits he's gold.
Usually it's very difficult to lose Toni, because she's not likely to be in combat from the start, but she doesn't fear to pile in late game.
Of course that's a list good for killy schemes/strat and not very much for strats that require a "open game" like Stake at claims.
Well, that's it: my 2 (€) cents. Hope to being usefull (or at least not completely useless
Bye