Here I propose a very quick suggestion: [s]Add a slight colour every smoke. Mind: VERY SLIGHTLY.
Just a very slight blue/red colour?[/s]
Make it slightly transparant.
Reasons to do so:
- Friendly smoke: You know there is no enemy, as your RedEye is most likely keeping a eye out with his IR on.
- Friendly smoke: Most likely you’ll not be spotted as well as there is no enemy RedEye nearby.
- Enemy smoke: Avoid, either kill the RedEye and use it to confuse/kill enemies.
I think that RedEye will stand out even MORE with this.