diff --git a/optionals/compat_sog/CfgWeapons.hpp b/optionals/compat_sog/CfgWeapons.hpp
index 5302ad6d175..55fe9edc92e 100644
--- a/optionals/compat_sog/CfgWeapons.hpp
+++ b/optionals/compat_sog/CfgWeapons.hpp
@@ -4,4 +4,5 @@ class CfgWeapons {
     #include "CfgWeapons\launchers.hpp"
     #include "CfgWeapons\pistols.hpp"
     #include "CfgWeapons\uniforms.hpp"
+    #include "CfgWeapons\weapons.hpp"
 };
diff --git a/optionals/compat_sog/CfgWeapons/pistols.hpp b/optionals/compat_sog/CfgWeapons/pistols.hpp
index e56cbbb04e0..25eef4c56c1 100644
--- a/optionals/compat_sog/CfgWeapons/pistols.hpp
+++ b/optionals/compat_sog/CfgWeapons/pistols.hpp
@@ -1,5 +1,17 @@
 #define MX991_FLASHLIGHT_SIZE 1.75
 
+class vn_pistol;
+class vn_m79_p: vn_pistol {
+    EGVAR(overheating,jamTypesAllowed)[] = {"Fire", "Dud"};
+};
+class vn_mk22;
+class vn_m10: vn_mk22 {
+    EGVAR(overheating,jamTypesAllowed)[] = {"Fire", "Dud"};
+};
+class vn_m1895: vn_mk22 {
+    EGVAR(overheating,jamTypesAllowed)[] = {"Fire", "Dud"};
+};
+
 class vn_pm;
 class vn_fkb1_pm: vn_pm {
     ACE_Flashlight_Colour = "white";
diff --git a/optionals/compat_sog/CfgWeapons/weapons.hpp b/optionals/compat_sog/CfgWeapons/weapons.hpp
new file mode 100644
index 00000000000..8a88b96f7f0
--- /dev/null
+++ b/optionals/compat_sog/CfgWeapons/weapons.hpp
@@ -0,0 +1,25 @@
+
+class vn_rifle;
+class vn_lmg: vn_rifle {
+    EGVAR(overheating,closedBolt) = 0;
+};
+class vn_m63a_lmg: vn_rifle {
+    EGVAR(overheating,closedBolt) = 0;
+};
+class vn_smg: vn_rifle {
+    EGVAR(overheating,closedBolt) = 0;
+};
+class vn_vz61: vn_smg {
+    EGVAR(overheating,closedBolt) = 1;
+};
+
+class vn_mk1_udg: vn_smg {
+    EGVAR(overheating,jamTypesAllowed)[] = {"Fire", "Dud"};
+};
+class vn_m79: vn_rifle {
+    EGVAR(overheating,jamTypesAllowed)[] = {"Fire", "Dud"};
+};
+class vn_shotgun;
+class vn_izh54: vn_shotgun {
+    EGVAR(overheating,jamTypesAllowed)[] = {"Fire", "Dud"};
+};