This is the tactic that requires you to simply stand in areas that are highly irradiated. This could be standing in toxic water, next to toxic waste barrels, or even just fighting super radiated enemies.. and LETTING them hit you.
The upside to getting mutations this way, is that it’s easy and free. You can literally just go around getting smacked by ghouls and get some mutations that way. It doesn’t require you to spend a single cap or go hunting around for mutations, you just get it.
Now the DOWNSIDES of this tactic is that you don’t necessarily get what you want. That means that you’ll be swapping your “Starched Genes” Park Card on and off to “Heal” away the wrong mutation. This ALSO means that you might end up with a bunch of mutations you DON’T want, and if you try to heal away the ones you don’t like, well, you might just heal away the ones you DO want.
This way is quite messy, but if you truly don’t care about what mutations you get and you just want them for free, you might as well.