I spent a great deal of time on Mesa back before I moved to Insurgency and back. The thing is, it's very fun to hang out and chill and do something entirely by yourself. This map isn't about capping points, or having fun while capping points. This is proven by the fact that the only way to cap the last point is either A) the other team lets you or B) you spawn camp them into oblivion and they cry tears of blood that fill a thousand rivers. It's one of those maps that's more enjoyable when neither team is winning.
Also, Beta's post about racking up high points and pretending to be pro couldn't be more true. We get it, you play heavy on Mesa. Whoop-de-freaking doo. You grab yourself a pocket medic or five and make sure you spy check all the time and you will NEVER die. Congratulations you just made the server rage quit and now you have no game.