This music is called " Gladiators "
It's from an earlier SmartSound album.
AP Series SmartSound Audio Palette
The album AP00 Dimensions.
Yes, this album has been discontinued and today you can only find AP01.
Luckily, many years ago, I had a digital copy of it.
So I can help you.
htXXs://mega.nz/file/JDUwWDIY#rlnntw8W_Uk_bKpxGCMge-fHtmzBVfCbzZPvUjQHBzU
I didn't know that they used to have AP00, but I knew that before renamed from "Smartsound Audio Palette Volume 1" to "Full Spectrum", they have around 47 tracks instead of 26 tracks now.
You're right, the missing piece is AP00 Dimensions.
Also, SmartSound is a video editing program that basically buys the rights to Royalty Free Music, and there doesn't seem to be any original music,
The music released by SmartSound is only available in its entirety, not in any other time period, and you'll need to use the program to edit it yourself to get the version you need.
I've listened to a lot of SmartSound albums, and a lot of the music is from Sound Ideas, Studio Cutz, Music Bakery, Westar Music, Narrator Tracks, and so on.