On Steam you can't but on consoles it's actually still available to be done. They did say that they would be bringing the update to consoles and eventually bring back Evacuation, Defend, and Nest but with updates while the old version remains part of "Legacy Evolve".
I actually just did/will submit my run to show it off. Rules are pretty simple 1- Use the ingame timer like in Tutorial 2- You MUST win the final mission 3- You can't change the enemy team
So it's a bit of RNG involved in who you have to face and the missions you get but the first and last will always be the same. Quickest way I found so far is do first three missions as Wraith, dying as fast as you can. Then winning the last two with Kraken. At least for me he's the safest for winning the final mission without dying.
