Ping systems have become a commonplace feature that should be included in any action game with a team element. It points out useful information to teammates and helps anyone in the game, regardless of whether they are in the chat channel or not. Enemy locations, valuable items, general areas they should look in, and more can all be covered with a good ping system. Here is how you ping in Back 4 Blood.
To ping in Back 4 Blood, all you need to do is press the Q key on PC. When pressed, whatever you aim at will have a marker placed above it, and your character will call it out for the others. As of this writing, we have only played the Closed Alpha of Back 4 Blood on PC. When we get our hands on the console version of the game, we will update this post with how you do so on those platforms.
As of the Closed Alpha, players can ping enemies, weapons, attachments, ammo, and other pick-ups. However, even if your cursor is not placed on an item, you will place a marker for teammates to look at whatever you are aimed at. This can be helpful on locked doors that need to have a Toolkit to open them. Regardless of its use, the Ping system will be a significant aid in keeping your teammates alert to your surroundings.