Three isn't enough yet??????????????
I swear I've commented this multiple times on this ORG site, but no, in terms of QoL, three isn't enough.
Here's what Men of War 2 does:
There is a single "ping" button. You press the button, and there's a simple ping where your cursor is. If you hold the key, it opens up a radial menu with a bunch of different callouts:
Enemy gun (howitzer), enemy armor, defend this, attack this, recon here, etc. etc. etc.
Most of these also have icons that show on the screen, like when you ping "enemy gun", there's a symbol of a howitzer, "enemy armor" is a tank, etc. So there's an immediate visual feedback. In addition, there are pre-recorded voicelines that play, verbalizing the ping type. Finally, in the team chat, a localized message is sent to each player. If they're polish, then it says "enemy armor" in polish, etc.
This is definitely not some kind of make or break feature, but it's much more helpful for communication between players who speak different languages than three pings with different colors on them.