Cheat mode:
Press ~ during game play in single player mode. Enter one of the following case-sensitive codes to activate the corresponding cheat function.

Effect - Code
Invincibility1 - aiCheats.code Tobias.Karlsson
Kill enemy bots - aiCheats.code Jonathan.Gustavsson
Kill bots - aiCheats.code Thomas.Skoldenborg
Bots cheat - aiCheats.code BotsCanCheatToo
Toggle AI statistics - aiCheats.code TheAllSeeingEyeOfTheAIProgammer
New spawn location - aiCheats.code WalkingIsWayTooTiresome

Sinking jeeps
Take an engineer and select your mines, find a jeep and place the mine on top of it, if all goes well the jeep should start to sink into the ground, competely useless, unless you want to get rid of the jeep i suppose, you can do this with single seater planes to

Watch your shootin!
When you are playing as assoult.You should have a great oppotunitiy to shoot aircraft.When you see an aircraft fliying get your wepon and start shootin crazy to it.

Note:0f you ar shooting an aircraft that is fliying you need to shoot with your gun to front of the aircrafts a couple meters more.
submitted by: Eren Gulbaran

Good combo:
If you are playing coop with 2 people have 1 be anti-tank and the other
medic this way you have a good chance surviving most attacks

Capture the flag (tip):
When your ally has captured the flag fly very close to the carrier if he
presses 'E' at the right time he can get into the plane and then just fly
him back

Easy plane fly:
message: When you fly a plane you have to use the mouse to aim your flight
if you change the controls from using the mouse to using the
directional-arrows instead you fly alot easier

Hints:
message: Some funny things to do, is if you take a jeep, you can drive on
people! It's kind of funny becaus they stay on the motor!
2. If you drive a plane, if you are over the water(land OK too), you can
press Enter/exit vehicle button and you will fall down and scream: Shiranimo!
Then you die, of course, you won't survive the fall from a higher place.

Airlift:
This one takes some teamwork and coordination, but you'll be cooler
than Maverick and Goose if you can pull it off. Have one player snag
a two-seater aircraft and take off flying solo.
Now position a friend high upon a hilltop or in a wide clearing, and
get ready to have him jump into your aircraft for a quick evacuation!
Here's how you do it: the pilot needs to fly slow, steady, and directly
at the player on the ground -- be as close to his elevation as possible
without actually turning him into ground chuck as you pass overhead.
At the key moment that the aircraft meets the player, the grounded solider
can quickly hit the "E" key to hop into the cockpit and be whisked away into
the clouds. Use this one to rescue a wounded teammate in a hot zone, or
deploy a comrade as a paratrooper deep behind enemy lines.
Just be sure to practice this one before you try it out in a live match --
a plane-to-player collision is quite an ugly sight and really hurts the
team score.

The Healing Dead:
If you're out in the field and hurting for ammo or health with no hope of
reaching one of those handy dandy bunkers, just take a look around you. If
there was a firefight recently, chances are some people recently died. And
as you should know, players leave their equipment behind on the ground when
they fade away. You should also be aware that you can pick up any of these
packs for yourself. So if you notice a medic pack on the ground, switch out
really quick and use the health packs. After that it's up to you whether you
want to change back into your former gear. The same goes for running low on
ammo. There's nothing worse than getting stuck with a pistol in the middle of
a machine gun fight. So if you're out, find a dead guy and steal his stuff.
If you're lucky, he'll have some ammo left on him and you'll be back in
business.

Explosive Jeeps:
The Engineer's most powerful weapons are the Explosive Packs, but it's
tough getting them close enough to the target to do any damage. Here's
a useful trick: use a jeep to deliver the payload. Grab a jeep (the Axis
jeeps work best, since they have a deep back seat and tall sides) and throw
a couple of expacks in the back or passenger seat. If they're placed well,
they'll stay in as you drive towards the target. When you see a target,
"ghost-drive" the jeep close to it -- i.e., point it in the right direction,
floor it, and then hop out with the E button, so the jeep coasts close to the
target. If you time this right, you'll be out of range of the explosives and
the jeep will be right next to the target. Then, hit the button and watch the
fireworks. This is a great way to take out tanks, APCs, and closely-packed
groups of enemies. Try coasting exploding jeeps into the middle of enemy spawn
bases to do serious damage.

Grand Theft Naval:
This one is pretty hard to pull off, but pretty damn funny if you get the
chance. There's a couple of ways to get it done, but both are pretty hard to
pull off. The first involves you grabbing a plane and flying out to the enemy
destroyer or preferably the aircraft carrier. Jump out of the plane, open your
parachute and land on the deck of either ship. If you manage this, you'll be
able to run on board and take control of the thing. Then just take the sucker
out for a joy ride turning it to evil purposes. You could even turn it out to
sea and move it so far away from the objectives that it becomes totally useless
to anyone. The other way I've seen the theft go down is someone parking the
battleship to close to shore leaving it vulnerable to incursion. That's probably
not going to happen all that often, so you may only be able to consider the first
option as really viable unless you can get hold of a landing vessel and pull off
a pirate type boarding.

Grenade Launch:
Sure, it may sound a little suicidal (okay, a lot suicidal) but if you're lucky
or playing on a friendly fire off server, you could be in for quite a ride.
Just drop a grenade on the ground, scream "Grenade!" at the top of your lungs,
and step right on top of the thing. If you don't die a horrifying death, you'll
go launching high into the sky. Why in the hell is this useful? Well, I suppose
it's not that useful, but it sure is fun and provides a couple of interesting
opportunities. First off, if you do it right, you can fly up into the air, hit
your parachute button, and float down on top of a building for a nice vantage
point. Second off, wouldn't you be a little frightened if an enemy came flying
down from the sky to land on your head? Third off, it's fun!

Leave No One Behind!:
If you grab a jeep, landing boat, or multi-person plane, don't leave on your own
unless you're fairly certain that no one else will be there anytime soon. It's
always better to have more than one person fighting along side you when you
reach your destination. And it's certainly better to have someone man the guns
that are attached to many of these vehicles to provide some extra support against
ground forces. So take a moment to check around your area to make sure there
aren't more friendlies to join you before you take off. If you can't see anyone on
screen, just look at your map for the friendly arrows.