HudMessageBold
From ZDoom Wiki
hudmessagebold (text; int type, int id, int color, fixed x, fixed y, fixed holdTime, ...);
Usage
HudMessageBold is the equivilent to PrintBold. It prints a formatted message onscreen for every player. As the only difference is that it prints for every player, look at the HudMessage page to see explanations of all the parameters for this command.
Examples
This command has a number of uses. One example would be printing a message to the player when a monster activates a script. Another is in multiplayer deathmatch or more specifically cooperative games. This following script reports to the player who has opened a door, and tells everyone in the game a similar message.
script 44 (int door)
{
Door_Open(door, 10);
HudMessage(s:"You opened the hangar door!";
HUDMSG_PLAIN, 0, CR_RED, 0.5, 0.8, 5.0);
HudMessageBold(s:"Player ", d:PlayerNumber() + 1,
s:" opened the hangar door!";
HUDMSG_PLAIN, 0, CR_RED, 0.5, 0.9, 5.0);
}
The one issue with this script is that the player opening the door gets both messages.

