Flag mechanics?
Like capture the flag?
Here:
No pictures though, but it’s quite descriptive.
Tell me if it helps!
For the lobby you want a a separate lobby for the players to wait until the host starts probably…
If you want to make this, make a separate area for the lobby (like a closed off area)
Then, put a spawn pad in that seperate area but make it so you spawn there PRE-GAME only!
Put another spawn pad in the real game but make it spawn you when your IN-GAME.
(As I’m not an expert I’m not entirely sure if this is correct. 
Don’t be shy to correct me if I’m wrong!)