AE Suggestion - "Event Flags"

I'm aware that this idea is a bit out there and may be too advanced to implement anytime soon, but I want to get it out there anyways.

"Event Flags," put simply, indicate whether or not an event has happened. This could be the completion of an objective, or the death of an NPC. They can be used to make events in early missions affect later ones.

For example, in Mission 1 there is an optional escort of a wounded soldier. If successfully escorted, Event Flag 1 is set. In Mission 3, if Event Flag 1 is set he will appear as an ally to return the favor.

Another, more complex example, in Mission 1 there is an optional battle against a Security Captain boss. Upon beating him, he drops a "Password" clue and sets Event Flag 1. In Mission 3, if Event Flag 1 is set (Meaning the PC has found the "Password"), a computer becomes available which activates a robotic ally to aid you.

I'm sure that even if offered only two or three Event Flags an AE arc would significantly impact the complexity of arcs. This could go a long way in bringing out the "RP" of this RPG and make arcs feel less like grinding meaninglessly.

Thoughts?

/signed! allowing actual choices and changes from mission to mission would be really great! it couls also open up different ways to complete the arc depending on what you do earlier! (hacks a stray computer to find a password to the plans for the satellite base in the second mission's computer, including the placement of robot control panels, which you activate in mission four to sow chaos while you upload the supervirus from mission three into the satellite's guidance system, pulling it out of orbit...)