Messages in the center of the screen is a big no-no. In the mod, I remember there was a "time is running out" warning that popped up in the middle of the screen. I recall one time I was capping the final objective, looking down the ironsights and at the same time an enemy came into view and the warning popped up. I normally would have shot him no problem but the message obstructed the view and I ended up getting shot. We stopped capping the objective and we lost the game. I usually don't get angry playing games but that one really pissed me off.
That said, the mine warning message could use some tweaks. They should only stay up as long as you are in the minefield. As soon as you get out it should go away. And on a related note, there should never be more than one minefield warning message up at a time, but I think this would be fixed if the former suggestion was implemented.
