I found it sad that allot of custom files are vanishing every day for all old-school pc games with mod support and i chose Tactical Ops: Assault On Terror as the game i would make sure nothing more gets lost. Also the fact that Unreal, UT99 and TO were one of the first pc games i played however both Unreal and UT99 already have large file collection websites.
The file archive was first online on the domains TacticalOps.tk and TacOps.tk in 2015 and 2016. Early 2017 i decided to purchase a domain since i wanted host a server with all custom maps and therefor needed a http redirect with lots of space and faster speeds then most free web hosts could offer. Also unlimited bandwidth would be a requirement especially since i wanted to make the redirect public.
In 2015 i saw that allot of TO related websites went offline and there were only a few left. I thought if this continues then in a few year all custom files would be vanished from the internet. With the main focus on custom maps, i started to download all files i could find from the internet. Searching with google and bing for days i found all remaining websites and downloaded all files. After this i started to download maps from servers before i realized i could download complete server redirects from both TO and UT99 servers.
Between the downloading and collecting of files in late 2015 i started the Tactical Ops Channel on YouTube, both trying to show simple guide videos with downloads links in the video descriptions and to show that there are still servers and players online. A few other TO players have also contributed many videos to the channel, view the About page on the channel for more info.
When sorting all custom maps a few problems encountered were such as allot of maps included files that would overwrite official TO files, maps with different files with the same name, maps with missing packages, filenames with spaces and other http redirect incompatible characters and this all had to be fixed. Since allot of the old map downloads had missing files and some even corrupt files there was decided to repack all maps and mappacks to seperate files with all packages included.
One of the biggest breakthrough was finding a stash of old "hidden" redirects from long forgotten TO servers by a game-server host who still had all their redirects online. Also i found a public 90+ GB UT99 redirect with various old TO maps and other TO redirects which i downloaded completely. This combined with all the maps downloaded from the last few remaining online websites and all online game-servers i had quite a stash of file to start an archive with.
At one point i came across the site tactical-ops.org back in 2016 that also started a project to repack all induvidual downloads, but they stripped all readme files from the maps. Which i sometimes tracked down and added afterwards. But i found some maps there i didnt have. In the end of 2017 i also came in contact with the LST Crew and they gave me acces to their map collection and redirect so i could download everything they had which also led to many new maps. I also have been contacted by some owners of websites admins and old server admins who send me their map collections.
Luckily with the large collection of packages it was also possible to find certain lost packages that were missing from all old TO maps and mappack downloads. (The last missing few missing packages have been recreated to make all maps playable)
While the collecting, testing of all maps and repairing of some maps was very time consuming, the sorting process of repacking all maps with all required packages, the removal of modified official files, the removing of duplicates and checking of different files with same names could all mostly be automated with help of various programs. (7-Zip, MyMapManager, AntiTwin, BatchFileRenamer)
Then in summer of 2018 a project was started with the help of SpiritSuxor to convert and repair all maps that would not work on TO3.4 & 3.5. These were made for older versions for the TO Mod on UT99. Currently over 300+ maps have been converted and only 10% remain. While the work on converting old TO maps grinded to a halt SpiritSuxor still continue's to convert old SWAT and UT99 maps to this day.