Image: UbisoftOfficial screenshot from Ubisoft.
Co-Dependent is the trophy for capturing an FND base with a co-op partner. It is the one base trophy that needs a friend, so save at least one base for a co-op session.
1. Invite a friend or join their game. 2. Pick an FND base the host has not captured. 3. Clear it together and finish the capture. The trophy pops when the base is yours.
Split the work: one of you handles alarms and cameras, the other snipes from range. Most bases have a Recon Laptop that shows cameras, alarms and tripwires, which helps both of you plan.