Oh yeah, I forgot about Halo 3.

I think I'm the only one who figured out that you're supposed to use a grav lift in the base mission and fly past all the brutes to the chieftan, hit him in the back before he turns on invincibility, take the invincibility then immediately turn it on and start killing the brutes. Not that necessary on normal difficulties, but on Legendary a room full of brutes ain't fun.

Or just run straight up to him with a over charged plasma pistol without your meme grav lift hoops to go through.

rank 34 out of about 800,000

My lone rare achievement I have is something me and a couple of friends got. It's Nagato Makes Moving Easy.
ODST was our shit.
For anyone wanting this achievement, don't ask for advice. We somehow got it after doing Kizingo Boulevard on foot.
We have no clue either.

Yeah, I got this achievement, too. I don't know how I got it; the achievement just popped up when I was doing a par time.
The rarest one I have in the MCC is the one in which you have to do the Ark without vehicles.

Today I've got 156,896 points in Irisu Syndrome in normal mode.
Edit: and went to lvl 100 with 183,116 points in metsu mode. I'm so fucking proud of myself right now, that if I was dog and had tail I would swoosh swoosh swoosh left right with it.

I played RE4 about 3 times over to get the specials.
Did a knife run in the first RE.