Contrary to little on the AI page, VNS_Tarkan is for The Conquerors Expansion. Like all other VNS scripts I've seen, it cheats on all difficulty levels. The only time this script is really viable is during the feudal age, where it attacks with some skirmishers and archers. Make scouts to kill these, it doesn't seem to train counter units well. Once in the castle age, it blows. It continues to train feudal age units, which got devoured by my knights and siege weapons. I've never seen it advance to the imperial age. It was killed by the following AIs -- Kosmos, Zycat, ATEX-Zenith, Gothmog, Swan, The Duke and Saiyan, all of which are non-cheaters. You took some time writing it, and it shows promise, but I can't really recommend this AI to anyone past the rook level.
-- Flat end newbies
NOT RECOMMENDED FOR
-- Players past certain skill bracket
-- Maps other then Arabia