Ditto, I still laugh at the story now.
But it is just so fun.

My favourite level is The fort. I just constantly replay the begining with the four guys on that first island.
"Your not using the right bait, Try THIS!"
"A grenade!? Or'lando your out of your freaking mind."
*open up with assault rifle from under the floor*
Hehehe.
As for the tactics - Cool. Makes me feel special now.

My only fault with prone is that if your on a hill its difficult to shoot on some angles, because you can't look directly down etc...
I never tried FarCry multiplay though, is that any good?