the "overlay" is indeed the blood on the player's screen,
i've implemented 3 variations with 3 different blood overlays.
- blood overlay on low health
- blood overlay on deadly headshot
- blood overlay on "normal" death
all can be enabled/disabled seperately from each other.
You can take a look at the screenshots to get an idea:
http://www.dodsourceplugins.net/gall...php?album_id=6