Sidetrack: The greatest gun ever. hands down.

If you're thinking anything besides the scarab gun from halo 2, you're wrong and you lose. Now look at the title, you might be thinking oh well halo can kill everyone instantly but I said gun foo! This weapon is so potent, so powerful, it distorts the screen when you fire it. Aside from the fact that it has infinite ammo and you never have to reload, it's in the vanilla game! no mods necessary. This gun spits out a giant beam of death. I've tested to see how far the beam goes and we sat at opposite ends of the level and i still hit him smack dab, insta-kill. The enemies on legendary cower in fear from the unholy wrath of John and his scarab gun. Also found in the level, relatively nearby, is a giant soccerball. My friend and I turned it into the new sputnik with the scarab gun, he flew to the very top of the map and the fall was hilarious. Crushed against the sky by a giant soccer ball, what a way to go. This weapon is of the finest quality and i hope that anyone who has played Halo 2 has gotten it atleast once. They shoulda had it hidden somewhere in all of the games in my opinion. Read all about it here; http://halo.wikia.com/wiki/Scarab_Gun