The 262 was fast though, at least 90 mph faster than any Allied fighter of the time, and proved troublesome against bomber formations, but there was never enough production to have a serious impact on the outcome of WW2. The Allied forces evolved new tactics to deal with this threat, and soon exploited the vulnerability of the jet while landing.
The Me-262 was armed with 4 x 30 mm cannon, and other variants included fighter/bombers, night fighters with radar, trainers, and even a few experimental types with a single 50 mm cannon.