So pulled out the old windows phone and got it connected to the WiFi so I could try and knock these out the last few achievements I never got on this back in the day. Issue with 'A for Effort' and 'Extra Credit' won't unlock because I show them as completed from previous platforms and so why sync'd it won't unlock. The work around in the past seemed to be you could complete a weekly challenge and then the two would pop but since weekly challenges are no longer generated kind of impossible to do unless someone has a solution I am unaware of. Thanks! :)
Forums / Games / Legacy Halo
***Spartan Assault WP Unobtainable Achievements
OP SAM 602