diff --git a/xlive/Blam/Engine/effects/player_effects.cpp b/xlive/Blam/Engine/effects/player_effects.cpp
index 11a07c880..de584b515 100644
--- a/xlive/Blam/Engine/effects/player_effects.cpp
+++ b/xlive/Blam/Engine/effects/player_effects.cpp
@@ -74,7 +74,7 @@ void player_effect_apply_camera_effect_matrix(int32 user_index, real_matrix4x3*
         {
             s_player_effect_user_globals* user_effect = player_effects_get_user_globals(user_index);
             bool bit_1_result = user_effect->flags.test(_player_effect_apply_camera_impulse);
-            if (user_effect->camera_impulse_passed_time > 0 || bit_1_result)
+            if (user_effect->camera_impulse_countdown > 0 || bit_1_result)
             {
                 real32 transition_result;
                 if (bit_1_result)
@@ -83,11 +83,14 @@ void player_effect_apply_camera_effect_matrix(int32 user_index, real_matrix4x3*
                 }
                 else
                 {
-                    real32 camera_impulse_remaining_time = user_effect->camera_impulse.duration - ((real32)user_effect->camera_impulse_passed_time - halo_interpolator_get_interpolation_time());
+                    real32 impulse_passed_time = user_effect->camera_impulse.duration - (real32)user_effect->camera_impulse_countdown;
+                    // do not stale the transition function
+                    impulse_passed_time += halo_interpolator_get_interpolation_time();
+
                     transition_result = player_effect_transition_function_evaluate(
                         (e_transition_function_type)user_effect->camera_impulse.fade_function, 
                         user_effect->transition_function_scale_9C, 
-                        camera_impulse_remaining_time,
+                        impulse_passed_time,
                         user_effect->camera_impulse.duration);
                 }
                 
diff --git a/xlive/Blam/Engine/effects/player_effects.h b/xlive/Blam/Engine/effects/player_effects.h
index 738d2cb27..f88bf05e5 100644
--- a/xlive/Blam/Engine/effects/player_effects.h
+++ b/xlive/Blam/Engine/effects/player_effects.h
@@ -61,7 +61,7 @@ struct s_player_effect_user_globals
 	real32 field_78;
 	int16 field_7C;
 	int16 game_time;
-	int16 camera_impulse_passed_time;
+	int16 camera_impulse_countdown;
 	int16 camera_shake_passed_time;
 	int8 field_84[4];
 	c_flags<e_player_effect_user_global_flags, uint8, k_player_effect_user_global_flag_count> flags;