Lots of good info already stated. Let me add some more.
300mph is a magic number, consider anything below that as slow. Jets are fundamentally different from props. Props are most efficent at lower airspeeds and become less efficent at high speeds. Jets are exactly the opposite. This is why the 262 is a pig slow and why God gave fighter pilots afterburners.
Also, besides no AB, the 262 also doesn't have speed brakes and can be very, very tough to slow it down. While is accelerates poorly in level flight, the plane is exceptionally slick and will accelerate like a raped ape going down hill. This is good and bad. Until you get used to it expect to be missing your wingtips and ailerons (the plane can be flown and landed with just rudder).
Another note, jets are fuel hungry and the plane carries quite a bit of fuel and therefore weight. You'll probably want a full bag of gas for most missions but make sure you burn it off to less than 50% before attempting anything other than high speed slashing attacks.
Most will just use the plane for slashing attacks, that's fine but a particularly fun tactic is the pure vertical. Dive for speed and hit the merge coming up at 450mph, pull pure vertical and wait for the over eager knuckleheads that try to follow you up. There is no way they can do it but they'll try. Over the top, drop a notch or two of flaps to reverse and blast them on the way down (throttle at idle going down please). If you miss then just roll away and pull up into the vertical again with an easy pull. If you blow it, put your nose down and extend. Once you get to 300mph start to climb, wingover reversal and reengage.
Remember, this plane flys like the rest, it's just that all of it's maneuvers are larger. Larger turn radius, larger separation to reengage, larger loops, etc. Don't try to turn it like a Zeke and try to turn inside of someone, it won't work. Don't think you can reverse on someone 2k yds on your six, you'll just give him a nice shot into the top of your canopy. Use E tactics; extension/pitchback, the vertical, and spiral climbs.
Last, you gotta think ahead. Your closure will be much greater than what you're used to. If you're inside of a 1000yds and aren't set for your shot it's too late.