Ill have one tepee/tent made with birch bark.
you're pushing the boundaries, but as long as it is in Iroquoian style, then things should be ok.
And can't I just call them Iroquois?
if you are implying that you are going to make some stupid faction and tack on the name "Iroquois," then no. but if you are going to make a fairly true-to-history, amazingly awesome faction, then by all means go for it! Calling them just "Iroquois" would be perfectly fitting. when it comes to units in particular, go attempt to go with accurate names (maybe use Iroquoian words for the weapons or something, look back at the Aztec thread for details). honestly, it doesnt matter what you call them as long as it's not "Stick Man" or "Horse Guy."
now, ultimately, im not entirely sure how you Canadians are taught to refer to the tribal peoples of the North American continent, but i guess that if you were to release a pack of multiple aboriginal factions (which you should), you could go with "The First Peoples Pack" or something.
ok, just to throw something out there, Omega, do you think that this faction should have a rifle-toting unit? im assuming that this is around the time that American settlers were expanding West, which would make sense for the Iroquois to have traded rifles with the settlers. if so, maybe he could either be a heavy infantry or possibly a skirmisher (high damage, low HP/armor)