Some of my thoughts on the troops. The heavy infantry is great at soaking up damage. The sappers are a bit volatile, just as in the books. With the siege bonus they will be a solid unit too. The marines are very good, with their precision 14 almost all their bolts hit the target. Though some might say that precision 14 is a bit high, don't think there are many if any other ranged troops with that high precision. But on the other hand they are quite expensive. The wickans are superb, I don't really need any other troops than them. A priest to keep the morale up and then I just watch tear through the enemy. Haven't used medium infantry yet, but shall from now on since I think the heavy are a bit too slow. It don't seem to me that any of the troops are overpowered since Malazans don't have any sacred units at all and I think you should keep it that way. Malazans are in no way a religious people.
I've also been playing a bit more with the claws. While their astral magic is really good I still think they need some better stats to reflect that they are indeed the "elite" or maybe you could leave them as they are and lower their cost a bit.
I've also noticed that the high fists start out really old which is not a real problem in any way, it's just that it sucks when they go and get diseased and die during a campaign resulting in my armies getting stuck.
A bug that I found is that all the great hawks that I summon are named Laseen. Neither is this a real problem but I was a bit surprised when I saw that Laseen had fled in to enemy territory while still being imprisoned.