MEGA mirror: https://mega.nz/#F!KU0CnJzT!bZXuNluq8aBvu5ERP84bZQ

EDIT 14/11/16: Small update.
- Metal Sonic is now updated to the most recent released version
- SD and Hackless loaders no longer contain css bgm, title screen, or main menu changes to allow them to better fit on most 2GB SD cards.
Download link has been updated below. For users who just want to update Metal Sonic I've uploaded the gfx fixed file in a separate archive. Copy and replace in private/wii/app/rsbe/pf/fighter/MSonic/: https://www.mediafire.com/folder/grf1wnyi4nnzc/Infinite_3.0_(Metal_Sonic_update)
- - - - - - -
Well here it is, this is likely going to be my final release for Infinite. I might do some little improvements on the side at some point, but nothing else major.
Changelog is included in the read me, most notably is the addition of a whole ton of stages.
For those who haven't played with the pack before, basic features include:
- 14 Alternate costumes for most base fighters, an average of 9 or more for most extra fighters
- 65 Additional Characters
- Customized Menus and Menu BGM
- 450+ Additional Stages
- Project M's Stamina Mode

Still the same load type as before, but as the pack size is so big now it may not fit on all 2GB SD cards. Highly recommend using 4GB SDHC or higher, or going the dolphin route which has an iso patch for the brstms to save space on its virtual SD.
Follow the formatting instructions to get the most of your card's file size if you're using 2GB, but if all else fails delete the brstms, and pfmenu2 folder to free some extra space without missing too much.
Check out the youtube link for more info.

(Dolphin version has been fixed)
Finally got around to uploading this here. I've had this update done since the beginning of the year but I've been busy with college so I never had the opportunity to make it vault ready.

Notable changes from the last release are expanded costume slots for all base characters and some BrawlEx chars, tweaks to make classic mode and all-star more playable, and some moveset updates and bug fixes.
Full changelog and credits list are both available in the download.
There's 4 versions this time, Hackless, 2GB, SDHC and Dolphin. I cleaned up the instructions for using each one to only be relevant to whichever one you downloaded too, so it's less confusing for those who are less familiar to setting this up... Though if you're downloading it from here I sort of doubt you'll have as much trouble with that.
And as for the usual features and such:
- 62 additional characters, original roster kept intact
- Over 100 stages. (Gamecube or Classic controller required to load half of them.)
- 13 alts for most base fighters, around 9 or more for each BrawlEx character. All alts have appropriate cosmetics from in game snapshots.
- BrawlEx characters all have gfx fixes to avoid conflicts.

Code list included if you want to make your own .gct.

If you want to contact me or follow updates I'm most active on my facebook page (https://www.facebook.com/pages/Smash-Bros-Infinite/1455287071448416) however I'll be a lot less active over the next while due to college and work. You can always pm me here and I should be able to get back to you asap.

Enjoy!