Okay heres the deal people, I have beaten hard many times with this good old tactic. Ahem
Okay now you start off with just building this; 1 infantry, 2 support, do this once more then the AI uses his special so wait till its gone then build this group again and again till you evolve then do it again (You may want to do support range!) Once you get to Egypt build anti-armour as they tank more than the infantry but dont forget the support. Then you do that till Renassiance then build the horse units and rifle men to seal the deal then once you reach modern (By this time you should be WAY ahead of the AI) use what ever the hell you want but DO NOT get tanks. Once you reach futuristic just build ACSs and upgrade a little then get turrets and stuff (Heavy Plasma) Then finally upgrade Anti-armour and turrets to max, get access to god's wrath and continue your owning with the ACSs till you reach 35000 (Dont forget the beam, use it oftenly) then spam ACSs then build 3 God's wrath then back them up with fully up-ed cyborgs and you have won!!!
D3ATHbyFORC3