So I corrected most of the bugs and I'm currently working on a Spectator Mode, an option I consider important in all online shooters. Added a "/clear" command as RIcky suggested to refresh the frame's GFX, which is one source of lag. I also created a Chat Room, seperate from the Debug Game room for those who want to chat. I'll eventually add alot more optoins in the chat room, such as Create Game, Join, Quick Game... You get the idea.
I'm pretty sure it is. If it's a problem, then it could probably look nice by connecting the boxes with a paler shade or an alpha channel of the same shade.