I bet the best thing that could possibly be done is simple: Help those players get better. Or at least try. If they are friendly, give them some advice, maybe a class recommendation or play style to try. Who knows.
I actually get kills with the halon gas/sabotage about half the time. sometimes i kill myself too XP And ive never gotten a kill with the satellite crash. only killed teammates and teammates have killed me. that happening from a direct impact of the thing is understandable. but also easily avoidable. maybe instead of just the bright flash, they should make it so that whole area has a big explosion on impact, killing any enemies in the area.