The Spit IIa argument in this debate is just stupid, sry top say so. Do you realize that on such a server as ATAG is, you are pushing on the scene a plane that you agree to say that'"s his capacities allow him yo swing the balance of events by itself even it is present at 1/10th the number ?!!!
For sure it wld cure the team balance : most of us with realism in mind will get off the server.
No, as BlkDog and Thor did say, there as been always balancing issue (Sad to read you SNAFU

)... and individuals who likes the challenge to fight outnumbered
My suggestion would be to makes the stats a function of the team balance with more point credited if your team is overwhelmed. For example :
- 10/20 -> each kill credits you twice as much point
- 10/30 -> each kill is credited with 4 time the amount
- 10/60 -> each kill i scredited TEN time the amount
or some kind of exponential (not so much) rules.
I can tell you that I hve in mind many stats whore that will bail out and switch side as soon as such an indication wold appear in the server chat bar
Team-Unbalance is natural (do you remind that scene of the movie "I-Robot" with the genius professor discussing teh 3 rules and why they will try to stay grouped in a stressing situation - this is true).
But Pride and EGO is also natural

You'll always found both. Up to you to use it as a balancing effect
~S!