Your Black Mesa server comes with SourceCoop, the community co-op mod, so you and your friends can play through the campaign together. Players don't need to install anything; they join your server as usual.

The map your server starts on picks the mode. Deathmatch maps, which start with dm_, play deathmatch. Any other map plays co-op.

Starting The Campaign In Co-op

1
Log in to Bropanel and select your server.
2
In the sidebar, go to Settings.
3
Under Gameplay, set Default Map to bm_c0a0a to start from the beginning, or to the first map of a chapter from the table below.
4
Click Save & Restart to apply your changes.

New servers start on bm_c0a0a, so they are ready for co-op. While Auto Update is on, SourceCoop updates to its latest version when your server restarts. SourceCoop runs on SourceMod, so a co-op server always has SourceMod, even with the SourceMod setting off.

When players finish the campaign, the server goes back to the map it started on. A restart also starts again on Default Map, so to carry on where you left off, vote for your chapter with !changemap or set Default Map to it.

Chapter Maps

Chapter	Map
1. Black Mesa Inbound	`bm_c0a0a`
2. Anomalous Materials	`bm_c1a0a`
3. Unforeseen Consequences	`bm_c1a1a`
4. Office Complex	`bm_c1a2a`
5. We've Got Hostiles	`bm_c1a3a`
6. Blast Pit	`bm_c1a4a`
7. Power Up	`bm_c2a1a`
8. On A Rail	`bm_c2a2a`
9. Apprehension	`bm_c2a3a`
10. Residue Processing	`bm_c2a4a`
11. Questionable Ethics	`bm_c2a4e`
12. Surface Tension	`bm_c2a5a`
13. Forget About Freeman!	`bm_c3a1a`
14. Lambda Core	`bm_c3a2a`
15. Xen	`bm_c4a1a`
16. Gonarch's Lair	`bm_c4a2a`
17. Interloper	`bm_c4a3a`
18. Nihilanth	`bm_c4a4a`
19. Endgame	`bm_c5a1a`

Tip

To jump to another chapter while the server is running, type changelevel and the map in the server console, for example changelevel bm_c2a5a. To switch between co-op and deathmatch, change Default Map and restart instead.

Player Commands

Players type these in chat. In the console, use sm_ instead of !, for example sm_coopmenu.

Command	What it does
`!coopmenu`	Opens the co-op menu with votes and player options.
`!thirdperson` / `!firstperson`	Switches between third-person and first-person view.
`!changemap`	Opens a menu to vote for another chapter or map.
`!restartmap`	Starts a vote to restart the current map.
`!skipintro`	Starts a vote to skip the tram ride and go straight to Anomalous Materials.
`!survival`	Starts a vote for survival mode.
`stuck`	Typed in the console, frees you when you are stuck. Works once a minute.

Hold E on a fallen teammate to revive them.

Co-op Settings

SourceCoop's settings go in bms/cfg/server.cfg, one per line, see config files. Restart your server after changing them.

Command	What it does
`sourcecoop_survival_mode 2`	Survival mode. Players who die watch until the next checkpoint, and the map restarts if everyone dies. `0` turns it off, which is the default.
`sourcecoop_respawntime 2`	Seconds before a dead player respawns.
`sourcecoop_difficulty_auto -1`	Stops enemies getting tougher as more players join. `sourcecoop_difficulty` then sets the difficulty, from `0` up.
`sourcecoop_revive_time 4`	Seconds to hold `E` to revive a teammate.
`sourcecoop_thirdperson_enabled 0`	Turns off third-person view.
`sourcecoop_voting_changemap 0`	Stops players voting to change the map. `sourcecoop_voting_restartmap`, `sourcecoop_voting_skipintro` and `sourcecoop_voting_survival` do the same for the other votes.

In co-op the server also sets mp_teamplay 1, mp_friendlyfire 0 and mp_fraglimit 0 in server.cfg, so players are on one team, can't hurt each other and a high score can't end the map.

Switching Back To Deathmatch

1
Log in to Bropanel and select your server.
2
In the sidebar, go to Settings.
3
Under Gameplay, set Default Map to a deathmatch map, for example dm_crossfire.
4
Click Save & Restart to apply your changes.

SourceCoop switches off, and your mp_teamplay, mp_friendlyfire and mp_fraglimit lines go back to what they were before co-op. See change map for the deathmatch maps and map rotation.

How To Play Co-op On Your Black Mesa Server