To play the Invasion, make progress in the quest by completing every main quest in Normal Difficulty.

Acquire Ironheart Particles from Invasions, which are needed to level up the Inversion Reinforcement.

Enter Invasion through Albion > Infiltration Operations Terminal. Invasion will occur at two of the Infiltration Operations.

You can enter the same Invasion twice a day. The region where it occurs, as well as the number of entries, are reset every day.

Earn additional rewards from the Invasion when completing it within the time limit.

And to view the reward info for each section, hover the mouse over the trophy icon for that section in tooltips.

Every time the Invasion resets, a random penalty will be applied. Check the details regarding these penalties at the Invasion entry screen.

There is a limited amount of Ironheart Particles you can acquire from the same Invasion; this limit resets every 24 hours.

View this information at the Invasion entry screen.