Just throwing this out there — an idea for a unique 5CP setup where each team only has one spawn room but doors open and close to make faster routes more accessible. I'm only showing how it would look for the northern team to make it easier to follow; the real thing would be symmetrical.
Does this seem doable?
Not quite what your going for but
cp_stag is close I think.
Its totally doable, but the question has to be why? Does it add something interesting and exciting to 5cp play? Does it solve a problem inherent in the notion of a forward spawn? Or are you just doing it because it would be cool to do?
If its the third option, I think the eventual layout you're going to end up with will be more restrictive than you might think, which means the rest of the map's layout suffers because of a bit of "map theory".
Edit: Oh just saw the path from mid to 5. I guess that could be interesting, but it could also really screw up the dynamics of 5cp play. Like, you can walk behind the enemy team from middle while they try to cap 4 and get a really easy back cap. So, you'd have to dedicate 1-2 players to last every time you push to 4, or send someone to middle to watch the paths there so you don't get backcapped as you cap 4. All in all, could be interesting but could also lead to a lot of back caps and overly defensive postures on the last point.