Srsly...
"Right click" is Alt+Click on a Mac.
And basically any Mac can use a 2-button-mouse, if you activate the second mouse button in your System Preferences.
Even these default white Mac mouses have right-click, you just have to enable it.
New to computers, huh?
EDIT: Wait a sec. How are you supposed to play without the right button? There's an alternative firemode for each weapon, you know?
