Is this compatible with Marshmallow PE3 bootloader on N910T?
This is DOK2 ROM. Newest baseband and bootloader does not work with this ROM.
AFAIK, the only option you have for PE3 or PG2 is either stock or OverDrive's offering for marshmallow. The CM13 ports are, thus far, still on DOK/COG - though I see that Zion is promising to update to the newest firmware soon (he's CMRemix, I don't know what's going on currently with Resurrection Remix).