diff --git a/addons/frag/CfgAmmo.hpp b/addons/frag/CfgAmmo.hpp
index 3c555096f2..7a124833b3 100644
--- a/addons/frag/CfgAmmo.hpp
+++ b/addons/frag/CfgAmmo.hpp
@@ -266,6 +266,7 @@ class CfgAmmo {
 
     class B_65x39_Caseless;
     class GVAR(base): B_65x39_Caseless {
+        ACE_damageType = "grenade"; // compatibility with medical_damage, shrapnel should produce grenade wounds
         timeToLive = 12;
         typicalSpeed = 1500;
         deflecting = 65;
diff --git a/optionals/compat_rhs_usf3/CfgAmmo.hpp b/optionals/compat_rhs_usf3/CfgAmmo.hpp
index 6d32fad46d..4162adcedb 100644
--- a/optionals/compat_rhs_usf3/CfgAmmo.hpp
+++ b/optionals/compat_rhs_usf3/CfgAmmo.hpp
@@ -211,6 +211,13 @@ class CfgAmmo {
         ACE_muzzleVelocities[] = {340, 370, 400};
         ACE_barrelLengths[] = {101.6, 127.0, 228.6};
     };
+    class rhs_ammo_he_fragments: BulletBase { // Shrapnel, compatibility with medical_damage
+        ACE_damageType = "grenade";
+    };
+    class B_12Gauge_Slug;
+    class rhs_ammo_12g_FRAG: B_12Gauge_Slug { // Frag rounds, compatibility with medical_damage
+        ACE_damageType = "grenade";
+    };
 
     class Sh_125mm_APFSDS;
     class rhsusf_ammo_basic_penetrator: Sh_125mm_APFSDS {