I think not. The previous MM1FIR was very small, and was full of gimmicks that just weren't good for its size. Namely, fire traps, lava and teleporters. The first one was aggravating with what little space there already was to run around in, as when going up the stairs from below, there were two options. Risk going through a fire trap and take damage, or hit the dead end to the side to get a power weapon.
The placement of lava was no less painful, either. Maneuvering in the area those two rectangles of death were in was difficult, which often forced players to take the fight to either the cramped hallways or down below. Then finally, the teleporter room and their destinations. I don't think I need to say how much of a camp spot that is, and even then, the execution of teleporters in the map felt wrong because of how short their relative distances were.
-1 to this, please keep the current map. Although I have some things to say about the new map, that is an entirely separate matter. The old MM1FIR was cramped, full of danger and just not fun in general.