I obtained this achievement with the exterminatus mode, but on Kalkys facility arena.
I used the same perks
- Power Swordsman's Zeal/Swordsman's Zeal
With that, I never need to use heal bonus. Wave 1
: Just kill every ork (approx 80 kills)Wave 2
: Just kill every ork (approx 110 kills for a 190 kills total)Wave 3
: When you are asked to capture a point, just wait until the last seconds to start the capture because during this time, orks spawn infinitely. When only a few seconds are left, start capturing it, you have extra time. When the point is captured, the orks left are the last ones, they don't spawn anymore (approx 230 kills) for a 420 kills total)Wave 4
: Just kill every ork (approx 100 kills for a 520 kills total)
I stopped after the 4th wave because the 4 first waves net you with 520 kills (approx) in 12 minutes. The 5th wave can net you 500 kills but it's really long: about 18 minutes for this wave only and doing 500 kills is really difficult. So it's better to kill yourself after the 4th wave and restart.
If you want to do the 5th wave:Wave 5
: When you are asked to capture 2 points, capture the first one as soon as possible (the one in a larger area if possible). Then, wait as long as possible (as in wave 3 to have infinite ork spawn) to capture the second point. Once the two points are captured, just kill orks until you are asked to capture the center point. Wait as long as possible (as usual) to capture this one (to have infinite ork spawn). Once this one is captured, automatic weapons are triggered, finishing all remaining orks.
With this method, I played 13 hours to do 31k frags. I only need 31k because of my playthrough (about 3k frags), my weapon challenge (about 3,5k frags) and a lot of attempts to obtain