Is it possible to play Battlefield 2142 (Mac version) on the most current version of the Macbook Air? Ideally, I would prefer to play on osX, i.e., not through windows.
It should be possible. The main factor to consider would be the graphics performance, which, given that the Air has a Geforce 320M should be fine.
The tech specs for Battlefield 2142, according to Apple's downloads page are:
Should be OK!