[NEED HELP] Change mapinfo to make a CTF map a CTS map.

I recently downloaded my first map off of the internet: cos1_beta7b. I was browsing a Quake map website, and I figured that since Xonotic is pretty much FOSS Quake (it's even on the same engine), the map could be a could be a good defrag practice map on Xonotic.

When I did download the map and then run Xonotic, I was amused to find it in the CTF section. I would like to play this make on Defrag mode, though, so I would appreciate if this problem could be solved.

Thanks in advance!

unpack the map archive.

How do I do that? Just change the filename?

You locate the .pk3 file of the map. And open it with winrar/zip/whatever since .pk3 is just a fancy .zip. Inside in the maps folder is the .mapinfo.
Just add the line "gametype cts" or "type cts", save and replace inside the archive. (something like this just look how the other types are defined)