Iran, unlike America, has a government-supported militia system. Picture the insurgency of Iraq but much more intense and highly organized. Much of the Iraqi insurgency was focused internally; it was a civil war with American troops being attacked by both sides. Iran won't have the civil war distracting the insurgents; all their focus will be on the "infidel" invaders.

My opinion: It is Israel's war, let them fight it. We'll sell Israel the ammo, weapons, and intelligence they need.

On equipment: You get what you inspect, not what you expect.
On training: Our drills are bloodless battles so that our battles are bloody drills.
On tactics: Cheating just means you're serious about winning.