Rise of Rome level 2

Goal No. 1: DEFEND ROME AT ALL COSTS!!! You MUST send your Archer gens against the Carthaginian invaders ASAP. Fire at them from sea and kill them off on land.
Goal No. 2: Resources. You need them, I need them. Take the island with 1/2 your remaining gens. Note: It's best to have a cav & infantry gen attack it as you'll face 3 archers, 1 on land and 2 at sea.
Goal No. 3: Enemy at Sea. Send the remaining gens to protect your allies at sea. Then use it to kill the 2 sea archers by the island.
Goal No. 4: Hannibal should be killed by archers from a distance. He's powerful, and even Caesar failed to beat him, use your archer gens against him.
Goal No. 5: Gather your last remaining gens at sea. Once they are gathered, with or without your archer gens, storm the tower ASAP. Or else an archer gen behind the walls will start blasting away at you.
Goal No. 6: Storm the base! If the archer gen is killing you, use your archer gens from outside the Eastern walls to finish him. Then quickly storn the city before reinforcements arrive. Note: You may want to seize the spawn points if your gens are too weak to deal a powerful and swift blow to the city.
Advice: If all else fails, try to ignore your allies and go for the treasure at the Southeast corner of the map. It'll give you boots for a much needed speed boost. If all else fails, upgrade ALEXANDER AND ROBIN, ONLY to Medival Age troops. You'll like the English Longbowmen unit Robin has.

Thanks for all your help Nobunaga! I beat it on 3 stars!