After spending a lot of time reading over the wotr book i started thinking about a defensive Isenguard force and if it would work. The main idea is to have a decent block of Phalanx in the middle with warbands either side and scouts with bows then a couple of trolls and finally a ballista or two.

Would that be decent for a 1000p game? Could the same idea work for more points? Are crossbows worth taking and if so what size formations? Will the ballista's die too quickly in 1000p game to make them work?

Thanks in advance