This custom gamemode uses only hammer logic, for now. Once I get more confident in VScript and the like, I may adventure in that to make it easier to implement.

• On map start, the center point is activated.
• Like KotH, both teams have a timer that lowers when you hold the point.
• Unlike KotH, you must stand on the point to let your timer down; when all players leave point, it reverts to neutral.
• Once your timer runs out, you get a capture point (displayed in the HUD using game_text.) Once you reach 5 capture points, your team wins.
• After a point is captured, all points lock and a random point is chosen. After 30 seconds, the next point opens, allowing both teams to capture again.

Screenshot of the HUD. Neither team has finished capturing a point yet. RED is currently holding and standing on the objective.

RED just finished capturing the control point (this has not yet been updated in the HUD.) All of the points are locked, and CP 3 has been chosen (reflected in the message on the top half of the screen.) In 30 seconds, it will be contestable.

Full credit to @Mr. Burguers for helping out with the gamemode logic, I'm new to this!