Redacted, Can't Delete!
I´ll bump this. The best threads are the ones with clear goals and the OP works out a problem with discussion in the forum rather than the standard question and disappear.
firefox - native
thunderbird - native
tf2 - native
quake3 - native
doom3 - native (works better in wine for me :D)
ksp - native
Web Ex - native
office - 03 worked in wine for me
notepad++ - perfectly with wine
planetside 2 - very bad ratings in wineHQ, propably not playable
mafia 2 - works in wine with worse performance vs. windows.
mass effect 3 - sort of working, with minor problems
DayZ - no idea, sry
battlefield 3 - no way.
https://teksyndicate.com/forum/linux/what-if-i-want-everything/157480 If you haven't seen this already this should be the way to go, if you have the right hardware. I will try this when I have some more experience with Linux.