was planning on taking a nap due to my diarrhea but while eating my dry pastry and drinking my black tea I thought out a situation: you're chasing an alien you almost killed, you heard him whine as he has low HP, he is faster than you but the map is kind of closed in certain areas and it's possible the alien didn't go all the way to the base, you don't have a radar or if you do it has a short range and all you can do is guess where that nasty (or cute) alien (furlien) went
BUT WHAT IF
there is a blood trail giving away his position?
doesn't have to be a decal that goes along the entire map, just some green blood drops every X meters
i've had countless such moments in Tremulous so I thought this could help, especially humans w/o a helmet hunting a bleeding goon