I don't understand why you want a new feature when an already existing one (nametag color) can be extended to fit your suggestion (like Happy's /tagpanel or Dredd's "Ability to mark a group as enemy group for your group" suggestions).Is your reasoning that the highlight would offer better visibility?
You can actually add this, by going to settings and set allience color , negative
Neither of you have read anything clearly, the point of this is to allow better visibility and a better way of identifying your enemy.Which a lot of players do struggle with in wars, reason being this being fully supported by the community.
@Nuko just check that video for once, is this possible to implement in MTA?
This idea is possible to make in MTA, have already made something similar to that, outline objects using shader.I have used and make some edits on this examplehttps://wiki.multitheftauto.com/wiki/Shader_examplesYou can find Ped shell down below and using shader is going to be easier than using dxDrawLine3D cause it requires a lot of mathematics.I was going to make a suggestion about this but it's already done 👍🏻✅ Positive