-If you must, circle strafe right next to an HW and shoot him with the shotgun. He can't turn as fast as you can run while firing.

-Vary the route you take to cap the flag. Try to sneak up to the flag area instead of running throught the main route.

-Try This: if an HW is guarding the flag, throw a conc grenade at him right before it explodes. He wont be able to shoot you and he can't catch up to you either.

-This guy is more of a spy than the spy. Being fast has its advantages, you can round a corner, wait in a dark place for the enemy to pass, and go back and cap the flag. I do this all the time.

-Spray the snipers with you nailguna few times just for the hell of it to piss them off.

-From a long distance, you can easily destroy SGs with the nailgun.