The Dive Harder expansion has added the new Proving Grounds missions which you can get to by using R1 (on controller) when on Galactic Map. The rest of how you review and select mission should be familiar. Each War will have 3 new missions (one for each faction) that will stay for full duration of the War with different Mission, Condition, and Modifier. Whichever team earns top of Proving Grounds Experts leaderboard (fastest time) at end of each war for the mission will earn the respective new Cape (by Faction and Difficulty). There are 9 new capes to earn and it could take many wars to get them all. The leaderboards on Steam vs PSN are separate.
For War 90, here is how things are starting out
- Mission: Exterminate
- Condition: Up Close and Personal
- Modifier: Orbital Bombardments
- Mission: Defend Launchpad (x3)
- Condition: New and Improved
- Modifier: Ghost Town
Cyborgs 15 - The Inner Circle of Hell
- Mission: Defend Area
- Condition: Liberty Day Veteran
- Modifier: Double Damage Weak Spot Only
If you have any questions about any of this, ask away and I and others will answer.
Have an awesome Liberty Day weekend ahead 
