There weren't even 200 buld. Current knowledge is that about 170 He-162 had been build in total, with only a small number of them actually becoming operational
The meteor was operational from July 44 on as a V-1 interceptor and in a ground attack role from Jan 45 on.
Far more then 200 were built, In fact over 350 "frames" were built; but they lacked engines. Most were operational, the real problem was lack of Jet fuel - in fact an entire squadron was operational, with only 2-3 flying operationally due to fuel shortage.
Same argument goes for the Japanese, the difference is Japan ran out of pilots before it ran out of aircrafts/airframes. In fact thousands of airframes were scrapped when the war ended, most without engines or weapons - on a funny note Japans equal to the "Panther tank" survived the war only because
it lacked any weapons - as for the allies rule on any vehicles with armaments, this particular vehicle was to combat the American "Sherman M4A2" - unfortunately its prototype was never finished when the war ended.
Meteor was used in combat and in squadron strength - Difference is the f7f tigercat, F8F Bearcat were in squadron strength but were not used in combat. Do-335's prototype seen "combat" but was not in operational strength or production and simply a prototype.
As for the He-162, it would be added in game - its the German equal to the La-7 - however a Meteor is still better then both the Me-262 and He-162, not sure why it continues to be ignored.