I really like the initial concept of workers to do maps

Tired of them dying though. Annoying to keep going back to recruit new ones. I mean why can't my team of level 1 and 2 map runners complete tier 2 maps? Do I need to roll maps with easy mods for them too? I have no idea. Wish the game would tell you these things. Oh well... I'm tired of rolling maps and spending currency instead of killing enemies anyway. Think I'll be opting out of some aspects of this league mechanic