How many super mutant behemoths are there on Fallout 3?

Super Mutant Behemoths on Fallout 3There are five in total you can find them at galaxy news radio, evergreen mills, capitol building, takoma park and finally at jury street metro station the best weapon to use are the alien blaster found north of MDPL-13 Power Station you will pick up a radio signal called recon craft theta good luck and get killing those muties

I think you missed one , i think there is six because ive found all those plus West of Megaton there is a shopping cart with a teddy bear and when i took it a super mutant behemoth popped up