NEIS is a very good set of rules for small unit actions in an asymmetrical milieu. It is ideal for actions from fire team to platoon level (3-30 figures depending on the side with the technological advantage). The rules set have abstracted rules for vehicles and for helicopter fire during airborne assaults but these are simplified in order to not eclipse the soldier on soldier action and the command and control friction which are the core concepts of the rules set. I highly recommend these rules for infantry actions. If your focus will be more about the armour or the aircraft on the battlefield then you might be disappointed. But the infantry rules are top-notch.