So if I bite off a Marines arm, I get nada if someone else kills 'em?
What about taking off 50 HP, and then someone else takes off the other 50?
The last person gets a kill point? me? the other alien? is it random?
This game mechanic could use some tweaks:
#1. Alien Kill points are represented as 'fractions'; E.g:
3.4 Kill points is not enough to evolve into a Tyrant, nor Adv. Goon but enough for regular ol' Goon.
#2. Fractional cost for Advanced classes.
#3. Cheaper, Balilisk (by a fraction) make it require 0.7 Kill points to achieve instead of one whole one. Still gotta waste MOST of a Marine to get it, but
#4. If two aliens tear apart a Marine they BOTH get some kill points when he dies. If one alien did 40 Damage, and the other 60 it works something like this:
Alien A did 40 Damage and Killed the Marine
Alien B did 60 Damage and the Marine ran away...
Alien A will get 0.4 KP and Because it administered the fatal blow, it gets a slight bonus (taken from the other aliens KP) of 25%.[0.15 KP]
0.40 + 0.15 = 0.55 KP for Alien A
0.60 - 0.15 = 0.45 KP for Alien B
It gets more complicated from there on, if the Marine heals at base then the counter is reset (and when he dies).
The system keeps a list of only the LAST 3 ALIENS that have inflicted damage on the marine (on this life).
Lets make this abit more complicated:
3 Dretches, A, B, and C each maul a Marine quite a lot, and the Marine runs away and uses a stimpack for a partial health restore.
Dretch A did 30 Damage and Killed the Marine.
Dretch B did 50 Damage
Dretch C did 60 Damage
The Marine had 100, plus 40 more HP from the partial stimpack. Thus 140 Total health.
A: [0.21 KP] + 0.18 = 0.39
B: [0.35 KP] - 0.08 = 0.27
C: [0.42 KP] - 0.10 = 0.32
(and everyone was cheated by a evil rounding error slightly)
This system should inshure that lower level players can get a slice of the Pie, early or late in the game. It may not be much of a Kill but it would ad up significantly in a large game.