Warcraft: Orcs & Humans/Grand Hamlet (Orc)

The first order of business is get your peons to the gold mine, and train a peon at the Town Hall. The distance of the gold mine is a challenge for this mission. Train enough peons that by the time you finished training a peon/spearman that you already have the gold to train the next one. In general, there should be 2-3 peons on wood in the early game, and shift down to 1-2 depending on wood distances. 1 is usually sufficient.

After you begin getting your economy, take the north bridge that faces east and west. This is where you will concentrate your defenses early. Send troops to scout down the left side of the map (not quite to the bridge) and bring them back to your main defenses. This is so you can see when the enemy attacks early enough to shift your forces.

The goal is to get at least 18 spearmen. 6 to defend the southern route, and the rest to attack the northern route. You should expand out to the gold mine before your current goldmine runs out.

If you get your attacking force to 16 spearmen then you should be unstoppable to flood from the north. Take your time to be sure that the bulk of your army stays together. When attacking the north south bridge. Send one troop forward to draw enemy attention to follow back to your big army. Then run all your troops to the other side of the bridge. Once everyone is in position, lure the city's defenses, destroy them, and then run into the city and raze it to the ground.

Alternative: Instead of building a heavy army of spearmen, mix in 4 necromancers who can raise skeletons from the dead, this serves to create a wall between your troops and the enemy, effectively increasing their hit points. The enemy will target the skeletons while you take out their troops.