it's called halomaps.org bruh
And Tnass, he's not wrong. hac2 does make haloce crash on start up you can't even download the program from the download link on the main page, because of this there's like only 80 players playing halo ce. However his work around didn't make sense to me because there was no hac.dll file in the location he described just a hac.tag file?
