In all honesty the whole hunt is seriously flawed. Elite marks may be the way to get marks faster, but at the same time they spawn randomly through the entire zone and have extremely low HP. When you have hundreds of people hunting the elite marks this means that the chance of more than a handful of the many even getting credit, let alone seeing it alive, far too low.

SE should have done the following:
Made multiple spawns at a given time of the same mark.
Increased the HP of the single mark allowing more to get credit.
Or done both.

Due to how you get credit (x% of damage dealt) this means getting to the mark is far more difficult than even killing or finding the mark.