No, it shouldn't be stopped. There's nothing wrong with borrowing ideas from something else, as long as there's at least some differences and original ideas in there. You can't say that HAVE is exactly like TF2 in every possible way. Yes, there are some things that they blatantly ripped off, but it's at least making an attempt to separate itself from TF2, with the whole toy thing, and it being a TPS instead of an FPS, being able to create your own characters, etc. I actually think this game looks like it'd be fun. So no, it shouldn't be stopped. Also, online petitions never work