Update, one of my friends found an upload of the fanfic up on RU-vid, go check it out!-ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-GSzrC7xG_sw.html
This fan-comic was adapted in some form officially for the Sonic Universe Silver Saga arc. The arc with Knuckles Enerjak and his ruined timeline. Also, you're awesome for using the Highway Battle music from NFS Undercover. That NFS game is so underrated.
Are you going to cover Evan Stanly's (Another Sonic Writer for IDW, She also wrote a story arc for Sonic Universe called The Silver Age (A spiritual sequel to The Silver Saga.)) web comic: Ghosts of the Future (It is one of my favorite Sonic Fan-Comics ever.) Also the Sonic Universe arc The Silver Saga is based on this fan comic. In the arc Silver is the one who meets the alternate Freedom Fighters and the Evil Knuckles known as Dark Enerjak and must stop him with the help of Jana Ca (an alternate version of Lara Su.)
This is eerily similar to the Silver Saga arc from the Archie Comics' Sonic Universe series, just that had Silver in place of Sonic, its funny because Ian has treated Other M as an embarrassment in his time as a writer, but yet he reused ideas from it in an official work of Sonic anyway.
I really hate how Ian Flynn ruins Sonic and Amy and Knuckles. I really hate how he insists upon the series. I wish that his dump ideas stay out of the games. I hate that he was brought on to write for Sonic Frontier and then the Japanese dub just changed it back to be in line with how the franchise has always portrayed the Sonic characters.