ok, so i completed all the co-op missions last night. got my 1-1, 1-2, 1-3, & 1-4 achievements. but, i didn't get the perfect first chapter achievement. so i racked my brain today trying to figure out if i missed something small. let me know if you guys did things differently

1-1:

primary objective: defend command post- DONE
primary objective: clear park- DONE
secondary objective: help pinned down allies- DONE
primary objective: eliminate reinforcements- DONE (could it be because i didn't blow up the rebel vehicles??)

1-2:

primary objective: clear enemy camps- DONE
primary objective: gather intel- DONE
secondary objective: obtain shipping manifests-DONE
secondary objective: eliminate supply cache-DONE

1-3:

primary objective: move up and sucure the treasurey- DONE
secondary objective: eliminate SAMS-DONE
secondary objective: stop enemy transport-DONE
primary objective: defend treasurey while hostages are extracted- DONE

1-4:

primary objective: eliminate enemy lieutenant- DONE
secondary objective: destroy weapon cache- DONE
secondary objective: reach extraction- DONE

now, could it be that i did 1-1 by myself. i was connected to live in a private game. what that be the reason. or did i maybe miss something???

thanks for the help

Did you do each objective in one mission, or separate run-throughs of each mission?

Not sure i follow the question. i was playing the campaign mode on xbox live. it was a private room with me and a couple of friends. we completed each mission in the last 2 days not all @ once though. hope that helps.

I noticed that if you used any custom settings you wouldnt get the perfect chapter so try just beating the first level again with regular settings.

Yea i guess i don't have any choice. i don't think i used any custom settings but wouldn't swear to it. my buddy had the same problem but, he thinks it's because he completed his by himself. any comments on that. would you not get a perfect chapter 1 achievement by beating alone???

1-1 is the hardest to get 100% because protecting the men is time sensitive. You must have a team in position in order to help your men in the market. In all likelyhood this is the mission you still need to do.

i don't wanna be "one of those a-holes"

but there is a gaming section dedicated to GR:AW stuff, this may be better suited to go there

you may get some more "advanced" ghost reconers there too,..... (sorry, i got no info to help you out with your particular problem though)

moving to the appropriate forum now...