In better word it is a brand ok. like MIG-21 is a fighter aircraft, like wise MIG-25, 27, 29 and they used to be made by USSR (Now, Russia and its former member countries)
Likewise fighter series they have MIG-16 helicopters which is a heavy lift helicopter and thet have many more in series.
So, don't try to critizise or atleast do some research before uttering foolishness
