Lol Recon without a scope can be very helpful. As the sniper retains it damage while removing nearly all of the recoil from the default scope. Can be very useful in taking out targets in the field.
Also, CAR BOMBS.
1. Find a jeep/buggy
2. Slap around 3 - 4 C4s on the FRONT side of it (This is important, as putting it anywhere else may cause the explosion to be less effective).
3. Get in jeep/bunny
4. Find a tank
5. Drive straight into tank (Make sure not to miss lol).
6. Jump out right before it hits.
7. Detonate C4 when it hits.
8. Watch the fireworks and rack in points. :)
BTW. Anyone who bought Limited Edition BF3, will get Back to Karkand. Whether pre-order or not. I got a LE edition from Walmart. There were normal ones there too. More LE than normal lol.