Maybe... But i think there should make a game called HALO BEATS... For the CAMPAIGN i think there should be around 50-55 level.... its is possible GTA san andreas has over 100 levels so it is possible... there should be a diffrent category's like humans come and then there should be humans vs halo and u dont know what to choose and u get ur chance of being a human back or staying as a halo.... and then what ever u choose should have a diff story. but that should be like from lvl 1 to lvl 25 and then if u choose to be a human u should look for the golden halo head... i know it sounds stupid but there should be boats and enemy's wants to save it cause it can do anything and if u get it u ask 4 ur father back... but if u choose to continue as a halo, u and ur friends get electric shoked and they turn evil and u well have to run away from the building and call ur other friends who didnt get electric shoked...
FOR THE ONLINE: over 150 maps.... i think for a start they give 25 maps and the more u win and do good stuff the more maps u well unlock... OH and there should be a special map called Deathtime map.. u get it randomly.... and then all the halo series stuff... it should include stuff that r in halo 1, halo 2, halo 3, halo 3 ODST, HALO REACH.... it should take a lot of time... but it well be worth doing it.... they well get lots and lots of money.... but HALO WARS 2???? Sure! there should be a lot of improvements