[NEED HELP] Decrease server log level

Hey, how can I decrease the log level of the server?
By default it shows just about everything in the log (journalctl):

Code:

Mär 31 20:25:37 server xonotic-dedicated[1466]: [BOT]Lion was gunned down by [BOT]Scorcher's Shotgun
Mär 31 20:25:37 server xonotic-dedicated[1466]: [BOT]Death slapped [BOT]Scorcher around a bit with a large Shotgun, ending their 3 frag spree
Mär 31 20:25:40 server xonotic-dedicated[1466]: [BOT]Dominator slapped [BOT]Death around a bit with a large Shotgun

I'd like to disable at least these gameplay messages of who shot whom. Is this possible?

Did you start xonotic in a systemd service? You can redirect the STDOUT/STDERR to /dev/null, since you already have those messages written to the log file anyway.