References to AC7 in ACX
in end of deception , crux tells you that aurelia's satellite surveillance system is back online for tracking fenrirs position , which makes sense for the events of AC7 , and then when you take down a fenrir , aquila squadron supports you by saying "They are ***only human" "***You can take them!"
Absolutely mental , that they were thinking about AC7 in the 2000s when ACX was being developed!