it cost too much and very risky for 251 go front line most time, since it have paper thin armor your lucky that maxim guy didn't bring out AT gun, i use to make maxim ratio to AT gun at 2:1
That's not luck, that's gauging how much MP your opponent could have spent and what plans he has and successfully figuring that he isn't expected to need AT anywhere near as early as I can get out a 251.
And a 251 flamer can kill an AT gun just like an M5 Quad can. They're both similar in lethality, though the 251 lacks suppression.
Also, if you're just making 2 Maxims and 1 AT gun with no conscripts early game, then my Ostwind and my mortars and my grens are going to destroy you. And my 251 flamer too, of course.