Not sure it really improves the experience, because I always personally feel a bit shitty for exploiting game AI (I'm honourable to a fault and prefer a good fight to an easy victory).
As I've been playing Stronghold Crusader, I will suggest this one: you can place a woodcutter's hut directly in front of the enemy gatehouse, blocking access, and this eventually utterly wipes out the AI's economy because they then delete all buildings outside of the gatehouse. At 3 wood each you can rinse and repeat if it ever gets destroyed, effectively crippling certain AI.
Another classic game, Rollercoaster Tycoon 2: you can exploit the 'No Entry' signs by placing them over the entrance/exit of your park and forbidding people from leaving. This is massively useful in missions that require a certain number of visitors.
As I've been playing Stronghold Crusader, I will suggest this one: you can place a woodcutter's hut directly in front of the enemy gatehouse, blocking access, and this eventually utterly wipes out the AI's economy because they then delete all buildings outside of the gatehouse. At 3 wood each you can rinse and repeat if it ever gets destroyed, effectively crippling certain AI.
Another classic game, Rollercoaster Tycoon 2: you can exploit the 'No Entry' signs by placing them over the entrance/exit of your park and forbidding people from leaving. This is massively useful in missions that require a certain number of visitors.