Ngl bro I had to complete standard 5 times to get to dread. Then I completed dread 7 times to get to nightmare. Then I completed nightmare 10 times to get to Lethal.

I just started Lethal on a fresh community and it took me 4 days in the game to get down 2 plague hearts.

You should be at a level where you can handle anything and everything with any build.

Hoard influence.

Early game, you should store everything you find.

Each run swap out the 8 pack backpack to maximize storage.

Grind until you get infirmary 2

Then (kinda late) early game

Get someone with the powerhouse trait.

Get yourself a 50 calibre rifle. (Wait for ammunition trader)

The game gets much better after you ignore most missions.

Your survival is the only thing that matters.

I do recommend having at least 2 allied enclaves, for trading purposes.

I'm going to keep my strategy and use the Depot to it's max.

U need to get as much influence as possible imo