I'm a new player at valorant so I wanna ask , is is that certain guns pair better with certain character abilities, like if I picked raze should I be using a specific weapon to complement her abilities or is any gun okay as long as I can...

I see the coach has their own desk, monitor and headset? What do they see, just spectating their respective team players as if a dead player can? Can they communicate with the team at all times or only during timeouts?