Missions & Complexes

I was doing the other day a COSMOS caldari storyline mission and i think some completion trigger is faulted.
This mission, to be more precise: Community service - Terrorist at large (2 of 4) agent: Kaiya Tuuri system: airmia

HERE IS WHAT MISSION OBJECTIVE STATES: "Capture Zarkona Mirei"
According to all guides, this rat Zarkona, lives in the third part of the complex.

The problem is that the mission checked complete on the first acc gate, after killing the three rats guarding it. None of them called anything near "Zarkona". I did this just before downtime, and the fact that mission completed on warp in, despawned the acceleration gate after downtime. I was at the first warp in on gate, no one else on grid, no one else finished the mission for me. I tried desperately to finish it with a more skilled alt, but never got to the third room... remember, the mission ALREADY checked complete.

And here I am with a uncompleted caldari COSMOS mis that will absolutely sure crash my faction standings. Of course i petitioned. Now the fourth GM is tellin me that " Information on our end indicate that the trigger of this mission is fine." Which information states that "the necessary action to flag the mission as complete was achieved today at 10:43 UTC. "
Well, at that time my logs clearly indicates: [ 2011.11.07 10:42:57 ] (combat) Your Hobgoblin I hits Gate Lookout, doing 19.0 damage. Thank you for stating the obvious, that is me killing the third rat on the first gate of the mission, two acc gates away from the objective - the Zarkona rat.
So how can this be right?

There are plenty shoot-this-rat-come-home missions like this ("Silence the Informant" L4 is a good example) and, as here, the mission objective STATES CLEARLY that an an action is required ON a specific rat (spawn, kill, shoot). And so does this mission "Capture Zarkona Mirei". THIS NEVER HAPPENED. Never spawn this rat, never shoot, never captured.

What to do next? My mission, along with my standings are about to expire.

The mission cannot be completed as i dont have the rat's beautiful corpse.
This item is not to be found on market/contracts since no one ninja salvages lonely carebears in rare COSMOS missions.
I would kneel before a Senior GM if i could find one, but to my knowledge escalations have a 5% percent chance of senior GM drop

so, if anyone reads this, if anyone cares ....

Tip - avoid running COSMOS missions close to downtime... yes bad things happen. I know a bit late now but not a whole lot more you can do except try to see if the petition comes through.

Good luck.

Thanks, i requested the escalation.
I checked and double-checked the 3 wrecks on the acc gate after the agent window popped up with completion. Nothing in them. No cargo around.
Another unusual thing i've observed is that even if the objective is checked with the green mark, the name of the mission didn't get green as it should do when completing the task...