I have been playing my Deathwatch in Crusade at my local store for a little while now, and am enjoying the crusade aspect. However a large junk of us are Marine variants (for obvious reason, codex and supplements gives lots of options) but there are a few newer player with other armies (wand who are struggling a bit against marines on account of old codexes), and I thought I would start a second force to vary it up a bit.
Tau are currently the oldest legal Codex I have, and the idea of crusade seems interesting for the kind of list I like to run. Specifically I like Stealth Suits so in 8th run a vanguard deatchment of Shadowsun, three units of 6 Stealthsuits and two ghostkeels at roughly 1000p.
However converting that into crusade terms seems tricky, so any recommendation on what to include to still be a stealth themes army for crusade, I need to be able to form things up into 25 power (in a patrol detachment) and 50 power armies (initially at least).