As an addon to the helicopter thread, infrastructure will be very important for the enemy. As they need to use it to transport their fuel, ammunition and other resources to their personell. Industry that supplies the enemy will also need to be cut off.
The electrical grid is the most important in that infrastructure system.
I assume that most military is not hardcore and only there for a paycheck and benefits, and will desert as soon as things look even a tiny bit bleak.
As to how things look at this time, taking out infrastructure is not terribly hard. As Metcalf showed:
https://en.wikipedia.org/wiki/Metcalf_sniper_attack
Information I seek:
>How do military bases get electrical power and how is the security?
>Where to do damage substations for a critical failure?
>Damaging train tracks to derail enemy supply trains
>Where and how deep are underground lines/pipes placed for supplying water and electrical energy to the enemy?
>How to effectively take out transmission towers?