I have used this tactic for sometime. My clan always go right as Seals on Sandstorm and we own. This is real effective when you have 3 or 4 people working together. 1 can hang back with a sniper rifle to scope out terrorists while the other rush. I like that map you used to show the strategy on. That's cool!!!
Its free?? I just checked it out and it only has a demo version that you cant do any other maps or save anything. Can you possible provide the link to download the one that can be used?