It's No Sidecar
Get a kill from the passenger position on a motorcycle
One of the trophies you might need help for, but it's still fairly easy without. All you have to do is sit on the second seat of the bike and kill an enemy. This can be done while someone else is driving if you have good skill at shooting targets while moving on the dirtbike. The easier way is to find a dirtbike near a conquest point on Conquest or your flag on Capture the Flag, sit in the bike and then switch seats to the back, waiting for an enemy to appear. This is one of the more difficult ones, but I got it while a person was going to get the enemy flag, I jumped with him and then shot an enemy at the enemy base. It's also possible to blow up a vehicle and get a kill which will net you the trophy. No easy way, but boosting it is possible by having a friend on the opposite team and meeting up with him.
Kill an enemy after successfully paradropping an IFV
This trophy isn't that difficult, but again the description makes it sound rather tricky. What you need to do is play a Conquest match on any new map, and use the Paradropping IFV option when it comes out. This will enable you to parachute down in a vehicle. This is the first part of the trophy, the next part is to successfully kill an enemy with it. That shouldn't be too difficult as long as you don't get destroyed before it happens. Another trick for this trophy is that sometimes you cant find a vehicle to paradrop in (the option just isn't showing up), then you'll have to find someone that has the vehicle and if you get in it, assuming its been paradropped, you can proceed to get a kill (not a vehicle assist!) and still get the trophy.
Capture the Flag
Capture 1 flag while playing Capture the Flag
Very simple trophy, might be difficult to execute. You have to capture a flag by going to enemy base, stealing the flag by walking next to it, then getting to your base and walking into where your flag is. The difficult thing about this is retrieving the flag. I prefer going there by bike and stealing it, then legging it by bike, but this requires a lot of luck. Another good method is to sneak by, eliminate the enemy, steal the flag and hop onto a nearby dirtbike. Others prefer to use armored vehicles to get there such as the M1 Abrams as they're good for defense but weak when mines are in proximity. You could also get there, steal it and get taken by a chopper if your team helps you well. IF you manage to successfully steal it and get back home, you also have to hope that your flag has not been stolen, as you cant capture a flag if that happens. With that being said you need to be working as a good team for this to happen.
Transport a flag carrier in an air vehicle while playing Capture the Flag
A really easy trophy as you can get it with no effort due to it being glitched in a good way, but difficult to understand as the wording is quite weird. Your goal is to transport the flag carrier in an air vehicle, preferably the chopper. If you do the glitch method the person you need to transport does not need to carry the flag, but simply must have carried it at some point in the match. As long as you are the pilot and the person who in the match carried the flag for at least a few seconds is also in the vehicle, and you go into air, then the trophy will unlock. This does not always work. You could well do the legitimate way of actually carrying someone who has the flag, which is difficult with the RPG's and Javelins all over enemy bases as well as those AA tanks. The person cannot be a pilot as you have to be the one transporting them. This has to be done in the new Transport Helicopters, known as the Little Birds, I can't confirm if it works on havoks or any of the two seaters, but I do know that the glitch does not. I am unsure if this is how it is supposed to be but thats how the trophy unlocks. Remember this can only be achieved on Capture the Flag mode.
Destroy an air vehicle using the AA jeeps
There are two new AA vehicles that are scattered across the new maps. The best mode for this is either Capture The Flag where transport choppers are often used, and AA vehicles are near your flags so you're able to pick them off, or Conquest where there are many transport choppers flying around as well as jets and attack helicopters. The goal is to use the anti-air seat, aim at the chopper and destroy the vehicle. Disabling it will NOT net you the trophy. All you have to do is destroy one, but with that being said it will be difficult with many others shooting at it, so look for an empty server. Below are the two vehicles incase you don't know which ones they are.