*Cracks Knuckles* Alright.. here we go.
The percentage bonus you lose from the workshop is very bad. You don't tend to work forest tiles very early in the game and they hinder your growth significantly. So you're forced to expand into these forested areas to get the benefit but you risk a very low population, which is more important. Forested tiles can also have luxaries and strategic resources on them, meaning you're forced to chop them down because you cannot put lumber mills on them. And most of the time, you want to chop down the forests for early growth and the quick 13 production for early wonders. What's more so is that I very much doubt that the percentage you lose from the Longhouse will equal it out or if you're very lucky, it will slightly be better. The upside to this building is that if you focus on sea/land caravans and make that city grow before these come out, it sort of becomes a better workshop but only for a short time, the 10% production loss is HUGE. And it stacks with others. You only have a limited amount of trade routes, so you'll want to be focusing on your capital more than your other cities, which makes this building generally hard to build. Yeah it's actually EASIER to build than a standard workshop, on standard they get -20 which is nice. But overall the 10% bonus loss is very bad because it stays
THROUGHOUT the game.
Their unique unit the Mohawk is actually situlational. These guys, I don't know why they don't have Woodsmen promotion because they really should, it makes sense to have it. They don't need iron which is HUGE on non-strategic maps as your enemys may not have the iron to compensate for it. So you can pump these out constantly. They also get a 33% bonus to jungle and forest tiles, that is pretty nice and this is why this unit should get woodsmen because overall it would make the Iriqous a lot more easier to play. Now the bad thing about this unit is that it comes at a very awkward time in the tech tree, swordsmen replacements are not good because it delays you from getting important techs such as Writing and Philosopthy. And if you do go that route then these guys are going to be pretty much out-dated or at least harder to try and work with. You tend to want to go to Construction and get composite bowmen or Mathematics for Catapaults. Which are REQUIRE different techs than the Mohawks (yay!). So over-all you need to think about multiple things, your gold per turn, will you get caravans out to sort it? Will you settle? Will you go one city and pump these guys out? Will you go straight to Iron Working and gets these and severely go behind in technology? To be honest, I do not know what role this unit is supposed to do, in vanilla these guys are just INSANELY overpowered because they could keep getting these non-stop and the player could do much about it because
THEY DON'T HAVE COMPOSITES. But right now, they are severely nerfed in Brave New World. It's not even like rushing to Iron Working with Legions as Rome because they're MUCH more better than this unit that is for sure. 14 strength, which the legions have 17. You're going to have to rely on jungles/forest
WHICH IN TURN SLOW YOU DOWN! SO WHAT IS THE PURPOSE OF THIS UNIT?! They are obviously meant for a rush because otherwise going to Swordsmen is just going to kill your science. But even you're losing massive amounts of gold and if it fails, you're done for. You don't want to be prioritising these guys early, you want to grow... but at the same time, it FORCES you to go down an awkward tech tree, again, I don't know what the hell this unit is supposed to do.
The unique ability is broken, period. A HUGE issue Multiplayer, And why? Forest tiles count as roads upon researching the wheel. So for an example, if there we're two forest tiles and one bare hill tile from your capital to your other city you wouldn't need to put a road on the forest which is very nice, that is going to save you a lot of gold per turn in the early game. Except there is a cost. You WILL need to a road on that hill, that is completly understand, but when you transition from that forest till to that roaded hill, IT WILL ACT AS IF IT WAS A BARE HILL. Which is massive when you need to get to destinations early especially in the MultiPlayer where you want to pump those units out and go on the offensive/defense. If this (bug) was fixed then it would slightly improve the Iriqous. Although even with it they would still be very bad because of their Unique unit and Unique Building. The unique unit and unique ability are supposed to work together, thats for certain,
BUT IT DOESNT, it's broken.