Its been a long time, my account got hacked so I had to delay any work. Steam support now got my account back so here is the update
Changes:

All capture points now have signs and names.

Shortened capture time for all points.

The fan now starts rotating at a speed impossible to walk through, but upon captureing the B point it will rotate slowly, but is still able to kill you. (instead of stopping completely) capturing the last point now also stops the fan from spinning.

Changed train kill icon to blast.

Added more cover to the C and A points.

Added more health and ammo packs.

Tweaked some lighting.

Changed the blue spawn so red is unable to spam stickies in it.

Moved the visualizers for blue further back so attack B will be harder.

Switched the skybox to trainyard.

A point now has more detail and the below area is flooded.

Added more signs and fixed a leak.