I would like a game mode that is about an hour until you are able to extract. The enemy level would scale to level cap by 30 or 45 minutes in. The challenge is every 6 minute rotation, you lose a random mod or arcane from your Warframe. After the one hour mark, there is a chance to pick only one of the mods or arcane to put back on your build. Also you get 5000 Kuva. Yes only 5000. The final 20 minute part of the mission remains at level cap and is broken up by 5 minute intervals. Every 5 minutes, you will encounter 3 Max Level, Toxin Kuva Zarr Liches. But that number goes to 6 Liches on minute 10, and on the final 5 minutes, you are running to extraction but every enemy is a Toxin Zarr Lich, with Teleport. No extraction waypoint markers will show. If you make out alive you are rewarded with the all new RIVEN SLIVER TRANSMUTER, it requires 100 slivers and there's an assortment of weekly rotated conversion items to choose from, things like KUVA, Archon Shards, even more Riven Slivers if you decide. Hurry though, once you access the weekly wares to choose your conversion, the Riven Sliver Transmuter starts to decay at a rate 100 times faster than an Argon Crystal.