I have a Singleplayer unity project. I want to multiplayer this game. You can use basic unity network. Server side placed turrets. Client side send enemies. Enemies and turrets are ready to use. Game can playable now. I just want to client side buttons. This buttons are just sends to server how much enemy goes.
So basically I made a ton of projects multiplayer before your project seems to be pretty simple so I guess it will be pretty easy to do
Relevant Skills and Experience
Mainly I use photon unity networking and UNET