This is a steelpit type map.
(3 points, a+b start as cappable, C is available after either of these is captured. C is required to win)

Made for a microcontest with trains as the theme, I tried to have A and B use an over and under approach with the trains but I don't think it ended up having enough impact.

The connectors and lobbies aren't amazing.

thank you @Yrr for the steelpit prefab, @toopliss for pickup prefab
@fishyubermuffin for train hazard prefab