Human Scoring:
Humans get equal shares according to the damage they did to the alien that got killed. 
Example:
If player A does 14 damage to a dretch and player B finishes the dretch’s last 11 points and it dies then player A gets 14x7= $98 and player B 11x7= $77.
Except for the Advanced marauder all credits/HP are exact.
Dretch			$175		$7 / HP
Granger			$200		$4 / HP
Adv Granger		$250		$3,33 / HP
Basilisk			$225		$3 / HP
Adv Basilisk		$275		$2,75 / HP
Marauder			$350		$2,33 / HP
Adv Marauder		$450		$2,6 / HP
Dragoon			$500		$2,5 / HP
Adv Dragoon		$600		$2,4 / HP
Tyrant			$800		$2 / HP
Alien scoring:
The alien that did the most damage gets the evolve point. If there are more points to be divided they will still be divided by who did most damage.
Example:
If alien A did 34 points of damage, alien B 40, and alien C 26 points and the human died alien B would get the evolve point. If the human is worth 2 evolve points alien A and B would each get a evolve point.
A human with equipment worth from 0 to 300 credits gives 1 evolve point.
A human with equipment worth from 301 to 600 credits gives 2 evolve points.
A human with equipment worth more then 600 credits gives 3 evolve points.
Correct me if I got something wrong.