Whoever designed and decorated this room obviously had a thing for warm colors. Faded red bricks form the walls, and there are red tinted splotches everywhere (don't think about it too hard). Then there's the obvious mural of a red cartoony bomb on the wall with the letters "RED" on it in big white lettering ("Reliable Excavation Demolitions" is written below it in smaller writing). There's also this faint smell of what may or may not be gunpowder.
There are a few lockers at the side of the room, but they're not really lockers so much as wood cubbyholes. There's a dartboard pinned to a wall that's seen better, less hole-filled days, one of those READS YOUR REAL WEIGHT! retro style scales in the corner, some white towels hanging off a rack over a bench, and two cabinets with a red cross and what looks like a simplified picture of three bullets lined up on the doors (maybe that's where the gunpowder smell is coming from). Vents crisscross the ceiling.
Between the lockers and the dartboard is the exit; an industrial garage door type deal. It looks like it'll open if you stand close enough to it.
[This is the RED side of the first phase of the Team Fortress 2 plot for Milliways Bar. If you want to be a BLU, check
hands_of_blu. Mission briefing happens here, and once we get enough players, the fun will really start. Check the
Team Fortress 2 wiki for an idea of where we are.]