Making a capture based kind of game, please help

Hello people, just wondering if someone can help me, I am making somewhat like a capture the base kind of a game and I have 3 bases for two teams to capture, like those battlefield conquest games, but this ones entirely different as the team just need to capture three bases within the time limit, whichever team captures the base the mose until the end of the game timer will win. Hopefully someone will give me an idea with this. I already did the BP for the teams, that can identify which team capture the base, but I am stuck at the end where the time limit and whichever teams capture it the most… if anyone can help me with this, I would gladly be grateful.

here’s an idea I came up with…