Settings

Now applies the value to the running server. Keep writes it to server.cfg. The game re-reads that file on every map change, so anything applied with Now only will be undone at the next map change — which is exactly what you want for a temporary warm-up setting.

Match mode

Either free-for-all reloads the current map to take effect. The difference is how long it lasts: this map leaves server.cfg at team match, so the next map change snaps back on its own, while keep writes it into server.cfg and it survives map changes and restarts until you switch back. Team match is the standing default and is always kept.

 

Match

Setting Value Live In file Apply
Game mode
fof_sv_currentmode

Shootout is the normal mode; team vs free-for-all is controlled separately.
1 1
Teams
mp_teamplay

0 = free-for-all, 1 = teams on. Changing this live does not flip an in-progress match, so the GUI applies it via a map reload.
1 1 needs a map reload — use Match mode
Number of teams
fof_sv_maxteams

2-4. Ignored while teams are off.

 2 2
Time limit
mp_timelimit

Minutes per map.

 10 10
Auto team balance
fof_sv_teambalance_allowed
0 0
Scramble teams
fof_sv_scrambleteams
0 0
Spectator camera
mp_forcecamera
0 0
Warm-up seconds
fof_sv_obj_warmuptime 		30 30

Bots

Setting Value Live In file Apply
Bot fill
fof_sv_bot_slotpct

Fraction of empty slots filled by bots. 0 = no bots.

 0 0
Bots join dynamically
fof_sv_bot_dynamicjoin

Bots join and leave to keep slots filled until humans arrive.
0 0
Bot skill
fof_bot_skill
5 5

Players

Setting Value Live In file Apply
Server password
sv_password

Blank means anyone can join.

 — temp123
Idle kick (seconds)
fof_sv_maxidle_secs

Move inactive players to spectator after this long. 0 disables.

 45 45
All-talk voice
sv_alltalk

1 = everyone hears everyone, 0 = team-only voice.
1 1
Voice chat
sv_voiceenable
1 1

Server

Setting Value Live In file Apply
Server name
hostname 		Fistful of Frags —
Browser region
sv_region

Only affects which location filter lists the server.
255 —
LAN mode
sv_lan

Must be 0 or the server never registers with Steam.
0 —
MOTD countdown
fof_sv_motd_countdown 		0 0
Turbo physics
sv_turbophysics
1.000000 —
Allow 'wait' command
sv_allow_wait_command

Leave off; it enables some exploits.
0 —

Advanced

Setting Value Live In file Apply
Competitive Shootout
fof_sv_dm_comp

Match ends at a notoriety target instead of on the timer.
0 0
Competitive target
fof_sv_dm_comp_points 		1000 1000
Custom item placement
fof_sv_shootout_custom
0 0