CTF 2Fort (Evolution)

The visual gem of Team Fortress 2, ctf_2fort has easily had the most released of it, beta-wise, compared to any other map present.

Version 1: Devtest.bsp

An extremely early version of 2fort that was present in SFM's files. Most of the map is dev-textured, with evidence of the two sides being mirrored. Half-Life 2 fences (and, on occasion, textures) are frequently for what seems to be placeholder purposes. There are multiple references to early TF2 entities, such as !TODO.

Version 2: Moby Francke Presentation

At his 2012 presentation, Moby Francke showed off in his slideshow an early version of 2fort before visually was added, with a few early TF2 player models alongside.

Version 3: Concept Art

There are two pieces of concept art for 2fort that are very lightly painted-over screenshots of it. While some vague shapes were added and the overall color balance was changed, the consistent aliasing present on most of the geometry shown implies that little was done beyond this.

Version 4: Trailer

Jumping ahead, this version has a largely identical appearance to the final aside from a few major differences. The bridge has yet to have a roof added, there are still signs stating the team name above the sewers, and signs next to the intel room respawn rooms.