Great

Even though the same map layout is reused, I still enjoyed playing through it without getting bored.

That said, even if the layout is reused, I think changing the arrow textures for each chapter would make navigation a lot clearer.

Here are a few things I noticed:

**M1:**
- The map seems to consider players as having left the saferoom right from the start of the intro, causing Special Infected to spawn. I think it would be better to extend the saferoom area to include the spot where the medkits are located.

**M2:**
- Bots don't enter the trailer before the horde event, so it would be better to make them gather inside.
- It would be helpful to place some ammo or weapons in the trailer before the horde event.

**M4:**
- The message "Gather all Survivors..." appears, but it's not clear where we're supposed to gather. Some clearer directions would be helpful.
- It would be nice to have some guidance when each training session ends or when the next one begins. Using "env_instructor_hint" to indicate where to go could be a good option.

**M5 (Finale):**
- The map feels a bit too dark, so adding a few more lights might help. The contrast is especially noticeable since M1–M4 were much brighter.
- Personally, I don't think the ending necessarily needed to be a "Sacrifice" scenario.

**Other:**
- Special Infected sometimes get stuck because they can't break down the building doors.