Change up for the PoE

[(XBOX)huhsaywhat]

Add either new caves or entrances inside existing caves for mission nodes like exterminate, defense, and so on. Along with bounties and incursions, classic missions types can add some entertainment to the plains.

Mission types could be tweaked to mesh with the plains better but may work without changes.

The new nodes could be used in the alerts with plains related rewards (standing, gems, resources).

Beginning at the gate, proceeding to the cave and then the mission entrance. Free roam alerts would appear as waypoints indicating the type of mission. After completing the objective leaving the cave saves the progress and returns to free roam.

A side idea would be to add corpus and infested invasions, maybe add void fissures in the caves. Bringing the other factions to the plains would make it feel more alive and inclusive to the rest of the star chart.