Deep Rock Galactic

This achievement may seem impossible at first but it isn't extremely difficult if you get lucky. I did this on my third try, after failing at two and three in a row. You don't have to do these in order I don't think, all that is required is that you complete 5 Hazard 5 missions without failing one.

Credit goes to "B4ms3M0rd3r" for saying that closing the game (not aborting mission) just before failing will keep your current progress, making this achievement easier and I wish I'd known this at the time!

I did this solo, and I used the driller. I upgraded Bosco (AI drone) to have two extra revives so I had a total of 4 revives. Initially I used the flamethrower and did 4 egg egg-hunts. I did them on Glacial Strata as the Praetorians freeze you rather than damage you and the freeze isn't so bad as you can break free in a couple of seconds. However, this is where I failed at two in a row, so intead I tried the Cryo Cannon (primary unlockable weapon as the driller). This deals with regular enemies and Praetorians better than the flamethrower once its fully upgraded, but it is not as good against the Opressors, Bulk Detonators and Dreadnoughts as it becomes difficult to freeze them and they break free very quickly. My secondary weapon was the plasma charger, which did have an overclock which increased damage but reduced ammo.

With this setup, it didn't matter what map area I played, as long as it was a 4 egg egg-hunt. I got to three in a row and a Bulk Detonator spawned during a swarm, and I accidentally triggered a BET-C robot so I was completeley overwhelmed. This is what I meant by getting lucky, although really it's not getting unlucky.

Strategy:
I would try to kill all enemies whilst getting the eggs so I wouldn't get trapped, and also tried to leave eggs that were close to each other till last. Then, I could quickly put them into the M.U.L.E and call for extraction. I also found that if I drilled through all the dirt areas at the spawn, I could create a loop so I would not get trapped and could keep circling the area whilst killing enemies. However, this may not work if the map has sheer drops.

Notes:
Sometimes, during a swarm I would drill into the wall for a bit so the enemies could only come from one direction and then used the Cryo Cannon to freeze them all. This conserves ammo but can be dangerous if you get overwhelmed as you are trapped. Try this out if you want but be warned.

Most of the time I did not need a supply drop, so I ignored Nitra and just went for the eggs. However, my last mission for the achievement I ran out of ammo and had to gather 80 Nitra whilst a swarm was after me which wasn't easy, so it is up to you, but the longer you are in the mission, the more chance you have of dying.

For enemies with more health, as soon as I froze them with the cryo cannon, I would switch to the plasma charger and unload on them.

Update: If this strategy is not working for you, Aethra and Ryokishine have suggested Point Extraction missions as the Scout as an alternative (and possibly easier) method. You can read their guides in the comments below.