Sadly the vanilla Dark Knight Returns suit has a 3D bat symbol which makes it look weird if you try and get rid of it. So I had to use the iconic suit which I'm not happy about but it looks better.

Install: Drag and drop TDKR_PART_ONE into DLC/401620

The suits I'm planning on adding in the future are
Pre Alpha Asylum Suit (Hopefully by the end of this week)
2017 JL Tactical Suit (This may change)
Assault on Arkham Suit (Probably next week)
 
So I'm planning on getting one big suit out hopefully once a week, maybe more maybe less, with smaller suits, batmobiles, and reskins in between.