diff --git a/cstrike/cfg/sourcemod/zombiereloaded/survivor.cfg b/cstrike/cfg/sourcemod/zombiereloaded/survivor.cfg
new file mode 100644
index 0000000..844a9eb
--- /dev/null
+++ b/cstrike/cfg/sourcemod/zombiereloaded/survivor.cfg
@@ -0,0 +1,18 @@
+// Configures ZR in survivor mode. Everyone but a small group of humans are
+// infected. Execute this config from a pre map config file.
+
+// Change to a different set of classes and models here if you want to use
+// different classes. For instance:
+// zr_config_path_playerclasses "configs/zr/survivorclasses.txt"
+// zr_config_path_models "configs/zr/survivormodels.txt"
+
+// Use absolute infection mode.
+zr_infect_mzombie_mode absolute
+
+// Number of humans. Must be negative in this mode. For instance, -5 will give
+// four remaining humans after mother zombie infection, the rest will be zombies.
+zr_infect_mzombie_ratio -5
+
+// Zombies must be teleported to spawn on mother zombie infect, or the humans
+// will be doomed.
+zr_infect_mzombie_respawn 1
diff --git a/cstrike/cfg/sourcemod/zombiereloaded/swarm.cfg b/cstrike/cfg/sourcemod/zombiereloaded/swarm.cfg
new file mode 100644
index 0000000..c3fc2d9
--- /dev/null
+++ b/cstrike/cfg/sourcemod/zombiereloaded/swarm.cfg
@@ -0,0 +1,22 @@
+// Configures ZR in swarm mode. A large group of humans are infected, while the
+// rest fight to the death (immune from infection).
+
+// Execute this config from a pre map config file. Remember to also execute
+// swarm.post.cfg from a post map config file.
+
+// Change to a different set of classes and models here if you want to use
+// different classes. Remember to use immunity mode "infect" and amount "0" on
+// all human classes.
+// zr_config_path_playerclasses "configs/zr/survivorclasses.txt"
+// zr_config_path_models "configs/zr/survivormodels.txt"
+
+// Use dynamic infection mode.
+zr_infect_mzombie_mode dynamic
+
+// Infection ratio. Infect every second player (50%). Use a higher number to get
+// fewer zombies.
+zr_infect_mzombie_ratio 2
+
+// Optionally, it might be good to teleport zombies to spawn on mother zombie
+// infection.
+// zr_infect_mzombie_respawn 1
diff --git a/cstrike/cfg/sourcemod/zombiereloaded/swarm.post.cfg b/cstrike/cfg/sourcemod/zombiereloaded/swarm.post.cfg
new file mode 100644
index 0000000..74b4532
--- /dev/null
+++ b/cstrike/cfg/sourcemod/zombiereloaded/swarm.post.cfg
@@ -0,0 +1,6 @@
+// Configures ZR in swarm mode. Execute this file from a _post_ map config file.
+
+// Make all human classes immune to infection (stab to death). These changes
+// will be reset when reloading or changing the map.
+zr_class_modify humans immunity_mode infect
+zr_class_modify humans immunity_amount 0