Final Support Specialist Assignment

So, I finally managed to get through the previous assignment for Support despite the bugs and it not counting progression. Now, however, I have encountered and actually impossible challenge, the Support Specialist 3 - get 2,000 dmg with the Incendiary Airburst Launcher and revive 75 team mates in a single match.....

I wouldn't have an issue with this challenge, if of course, it actually worked. the 2000 dmg with the airburst launcher should be possible, just spam the airburst in kill funnels and rack up damage points, easy.....if only. I have been spamming the airburst in EVERY SINGLE GAME I've played and only got (what the game recognizes to be) 212 damage.

So, is the damage counted only the initial damage done, or does it count the DOT damage done as well? if it counts DOT dmg, it needs to be fixed ASAP and if it doesn't count the DOT dmg and its only the initial dmg done, it needs to be lowered like they suggested they do with the sniper challenge, assault challenges etc etc.

As for the revives, 75 in a single game isn't possible, no matter how much i try, I max out in the 30 range for a single game. either the games need to go on longer or the count needs to be brought down, every video I've seen people doing it have been bot lobbies so they can rack up the damage and just heal the AI bots which we cant do anymore due to a patch and making it so AI backfilled lobbies don't grant progression for challenges etc etc.

Does anyone know if its DOT dmg or initial dmg that's counted? is it a bug? or do i just actually suck at using the airburst xD