DTV is surely rewarding, especially if you play with a little (5-15 people) group and they're good and know what to do. This way you can easily farm at least 500 000 exp daily if you reach vitez at least on each run on few maps.
Reward depends on: how fast you finished the round, how much damage did virgin took, how many players are in-game spawned (or dead, but
not just joined) and how many teammates died.
Afaik, the player-amount bonus reaches good number (25k for weaboos if not more) at around 5-6 people, so if you gather an elite group of 6-7 players and farm dtv from peasants to tincans entire map, you can get truckloads of experience.