I'd already been working on both maps for some time but was unable to find contact info for him until recently.
Thanks again Eric!
DM-Nitro
I've kept the meshes and materials light on Nitro for performance reasons (I want it to be played competitively). It's a fairly large map, large enough to play well in 8 man FFA DM and 4v4 TDM, yet small enough to work well for Duel too.
It mostly uses stock assets with a few custom materials and meshes.
DM-Bishop
Bishop is a larger map that plays well in FFA DM and should be ok for TDM but is too large for Duel.I've moved the 100 armor to the other side of the map and put a 50 armor where the 100 used to be. That should make it play better in TDM though it could use more testing and feedback in TDM.
I've gone for more of an atmospheric, moody and colorful look in Bishop but it still performs very well too. It uses a number of custom assets from several different UE4 demos and asset packages as well as a few assets I made myself.
Notes
Both maps have three UTGenericObjectivePoints which get used in gamemodes like Showdown, Domination and ShockDom.