What cool achievment should there be?

What cool achievement should be in the game

“Brother’s Keeper” - Finish a campaign mission with at least 3 marines alive on Heroic or Legendary difficulty.

Reaching max rank. (Only if it doesnt take as long as h5 to get max rank, h5 is ridiculous.)

Get 100 spartan kills in multiplayer.
Get 1000 spartan kills in multiplayer
Complete a multiplayer match without dying.
Finish the campaign on solo legendary.
Finish the campaign without dying.
find ‘easter eggs’.
Create 10 forge maps.
Bought all armor in the armory.
Unlock ‘special armor’
Play 1000 multiplayer games.
Win 500 multiplayer games.
Win a multiplayer match with k/d +20
Get 500 vechicle kills.

Complete a LASO mission without firing a bullet. Just melee and grenades.

Oh, you said cool, not cruel.

> 2533274800168045;4:
> Complete a LASO mission without firing a bullet. Just melee and grenades.
> Oh, you said cool, not cruel.

How about every mission on LASO with no grenades or bullet-shooting.

> 2535462145233570;5:
> > 2533274800168045;4:
> > Complete a LASO mission without firing a bullet. Just melee and grenades.
> > Oh, you said cool, not cruel.
>
> How about every mission on LASO with no grenades or bullet-shooting.

Halo 2 Gravemind would like to have a word with you. I can see them making an impossible level.

Back for more - Played through every other Halo game or complete Halo Infinite twice.

> 2533274800168045;6:
> > 2535462145233570;5:
> > > 2533274800168045;4:
> > > Complete a LASO mission without firing a bullet. Just melee and grenades.
> > > Oh, you said cool, not cruel.
> >
> > How about every mission on LASO with no grenades or bullet-shooting.
>
> Halo 2 Gravemind would like to have a word with you. I can see them making an impossible level.

There are several missions in Halo where this challenge would be straight-up impossible without exceptions. Namely Long Night of Solace.