Halo 3 forge ideas anyone??

[Ben C]

Now as we all know the halo reach beta ends tomorrow and everyone will be going back to halo 3 or MW2 well i want to keep the beta alive by forging a map or gametype about it i have the time to do it i just need some ideas and help so if anyone has some ideas throw them my way
ps Leave your gamertag and ill give you credit in the map desprition

 

[arbiterspawn]

do you mean leaving haloTalk! if it is ill help ps. what is mw2