Predicted footstep sounds (#7107)

Content.Shared/Movement/Components/FootstepModifierComponent.cs

@@ -0,0 +1,17 @@
+using Content.Shared.Sound;
+
+namespace Content.Shared.Movement.Components
+{
+    /// <summary>
+    /// Changes footstep sound
+    /// </summary>
+    [RegisterComponent]
+    public sealed class FootstepModifierComponent : Component
+    {
+        [DataField("footstepSoundCollection", required: true)]
+        public SoundSpecifier SoundCollection = default!;
+
+        [DataField("variation")]
+        public float Variation = default;
+    }
+}