[@Moonshadow] I agree, battle strategies and tactics would probably develop naturally over time as the characters learn to deal with one another. I imagine their first few fights will be more likely everyone getting in each other's ways as they have little idea how the others fight. Discussions of it would also probably something that would happen during some in character pow wow as well.

As far as Siege engines go- they're big and heavy, expensive, time consuming to build and probably require a full crew to use- so probably a bit beyond the scale of this adventure for Odran. He might try to build things for characters, if they get along well enough and he has access to the right materials... but its more likely than not Odran's tools are mainly going to be there for maintaining equipment, most likely his own, maybe some others' too.