Battlefield: Bad Company

It will take you a total of 37,000 exp to reach level 25 inside of the game. You can get points in a lot of different ways (see the achievement “Be the best” for a list) but for the most part you’ll be getting points from collecting trophies/patches in the game and killing enemies. You can also only earn points in ranked modes, so stick to those.

I’ll leave it up to you to pick your favorite/best class but I’ll give you a brief description of all of them.

Assault:
Assault are the basic troops, they can unlock a auto injector and have an assault rifle that has good range and distance. They are good at killing infantry that aren’t too far or too close but they are pretty much unable to destroy heavy vehicles. As an assaulter try to stay a good range away from the specialist and demolition classes and inject yourself whenever damaged.

Demolition:
Demolition are the anti vehicle class, they can unlock a anti tank mine that will destroy any vehicle that dares crawl over it. They also come equip with a rocket launcher and shotgun. Use the shotgun for close range encounters and the rocket for long range ones if you have to. Focus mostly on killing vehicles or going into close quarters. If you have the mines unlocked you can drop them all by a gold crate and then detonate them with a grenade to destroy the crate easily.

Recon:
Recon are the snipers of Bad Company. They have a motion sensor instead of a grenade and a ghillie suit to help them when they want to hide in a bush. Try to hide in a grassy knoll or on a hill where you have a good view of the enemies base so you can kill them easily when they run between houses. Throw your motion sensor into enemy bases so your entire team can know their position. If you unlocked the laser designator use it whenever you can, if you want don’t even aim it at the vehicle but at infantry that are camping, buildings, or the objective.

Specialist:
Specialists have a short range SMG and a unlockable C4 explosive as well as a vehicle tagger. In my opinion they have the best weapons but the worst everything else. As a specialist try to get into close to moderate range and unleash your SMG on the enemy. C4 is good for protecting/destroying the objective as well as unsuspecting vehicles. Be sure to tag any vehicle you can as you’ll make the demo guy’s job much simpler.

Support:
Support comes equip with a med pack, LMG, and power drill. They can also get a mortar strike which is useful to unleash on a building/camping enemy but isn’t that great against a vehicle as it takes a while to arm and then takes more time to land and even then may not kill the tank. Use the LMG to kill anyone you can who are relatively far away and don’t worry about reloading until you’re under 50 bullets. Make sure to heal/repair friendly vehicles (show up as flashing + signs and wrenches respectively) to help your team/get more points.

Although you might be best with just one class I recommend finding the best time to use different classes, more vehicles means you should be using the demolition class, no support people healing anyone/repairing anything means you should go support. Try to find that happy medium between classes.