You have all seen them...base campers. You know like the guy in the KV1 in a Tier 5 battle who is going to "defend base". What he's really going to do is keep his gun out of the battle until it has already been won or lost. Then especially if its a loss, he will do damage to the other team before he gets swarmed. Looking at the Battle Results screen, he will see he is in the top 5 and think "I did my share, the rest of the team sucked!" In reality, he contributed to the loss. The damage he farmed was "Loser Damage", meaning it could not contribute to a win. Games are won by doing damage early and often. Don't sit in the back and wait for tanks to come to you, even if you are in a low armor TD. Make a difference. Don't be "that guy".