yup, and there are concept artists, modelers and coders out there waiting for the chance :-)
[EDIT]: and judging by the title, i just realised that with the "Dungeon Master"(bullseye name, Player1) incuded, another opportunity would be added to Trem, so it would be kind of....:
FPS + STAREGY + RPG
along with =Troy='s idea about non-stage-based class/equipment developing, it would be rly unique.