Dear Community,
like other people, also for me the “Lone Wolf Legend” achievement is glitched.
I opened this thread because I have some additional info:
First of all: The following is fact: I have beaten all Halo 4 Levels on Legendary, solo. Also I have beaten the first Level of Halo 4 in Co-op (before I started the solo run).
Now while “The Legend of 117” unlocked, “Lone Wolf Legend” did not unlock. So obviously the game recognized that I have beaten the game on Legendary, but it did not recognize, that I did beat it solo (which I did). The achievement counter for “Lone Wolf Legend” is at 50%.
So if I now look at my service record, I can see that it says I have beaten “Dawn”, “Requiem”, “Forerunner” and “Composer” on Legendary Solo.
Then it says that I have beaten “Dawn”, “Infinity”, “Reclaimer”, “Shutdown” and “Midnight” on Legendary Co-op.
So while it is true that I have beaten Dawn on “Legendary co-op”, I have never played “Infinity”, “Reclaimer”, “Shutdown” and “Midnight” on Legendary co-op.
So basically the new info about this glitch is: When you beat Halo 4 on Legendary Solo, for some people some levels are counted as being played in co-op, with regard to the service record and the achievement app. This is why Lone Wolf Legend does not unlock.
I hope this helps to fix this.
just googled to see if anyone else had this problem, thanks for the info