So, what are the requirements for this achievement?

Hello! We will consider your request regarding this Achievement Task. However, note that we were trying to make the Achievements really challenging, so sometimes it must be that complicated. Our team is keeping on eye on the Achievements and we are taking measures when they become too unrealistic to be completed.

Thank you! I hope you will help.

Nobody is playing those weapons, just BOTs rarely. 

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At this point make it so the Ageis dome challenge includes guided weapons and artillery in general, since fusion mortars also don't count for the achievement, this achievement is simply outdated and now is too challenging for most to even bother trying to achieve it.

Thanks for your support and that you think the same. I also think that more actual weapons should be included in completing this achievement.  To accomplish this task is not about ability, but just pure luck. Therefore, the claim that achievements are made to be a certain challenge is not valid. This has nothing to do with challenge so I hope the mecharena team will help. 

So HYPHO today show it in his video. This is the hardest achievement in game at all. Because right now it is impossible to finish it!

Mech Arena | Top 5 most difficult Archievements! ( English voice ) (youtube.com)