Ranking-when you shot somebody you got some xp

[Ni3ls]

Well first it gave me potential infinite loop error. Now it works perfect!

[Rocky]

1 more..It will add xp's? or just in score?

[Ni3ls]

Score. Read the code

[Sense]

As long as the for( ;; ) has an end, than its not infinite loop. so dont add a wait.
Look for another mistake.

Replace this:

for(i = 0; i < self.assist; i++)

With this:

for(i = 0; i < self.assist.size; i++)

EDIT: Didnt realize that the answer already been posted.