I came up with this idea when Wolf was released, cause in AvP 2 you can see him gradually switching from range to melee as the movie and plot progresses.
Concept (Defiant):
The Predator starts off with 15% range damage increase and when his health starts to go down, it will slowly decrease. Till half of his health is gone. If this is the case he will slowly, as he is taking damage, build up a melee damage increase up to 15%. At this point, he will no longer have a range damage increase.
THX for the reminder @Anonymous.Voorhees13

