diff --git a/Source/interfac.cpp b/Source/interfac.cpp
index 71a38f4d7..758380486 100644
--- a/Source/interfac.cpp
+++ b/Source/interfac.cpp
@@ -254,127 +254,168 @@ void __cdecl FreeInterface()
 
 void __fastcall InitCutscene(unsigned int uMsg)
 {
-	int v1;            // eax
-	int v2;            // eax
-	int v3;            // eax
-	int v4;            // eax
-	unsigned char *v5; // eax
-	char *v6;          // ecx
-	int *v7;           // eax
-	int v8;            // eax
-	int v9;            // eax
-	int v10;           // eax
-	int v11;           // eax
-	int v12;           // eax
-	int v13;           // eax
-	int v14;           // eax
+	/// ASSERT: assert(! sgpBackCel);
 
-	switch (uMsg) {
+	switch(uMsg) {
 	case WM_DIABNEXTLVL:
-		v1 = gnLevelTypeTbl[currlevel];
-		if (!v1)
-			goto LABEL_31;
-		v2 = v1 - 1;
-		if (!v2)
-			goto LABEL_10;
-		v3 = v2 - 1;
-		if (!v3)
-			goto LABEL_9;
-		v4 = v3 - 1;
-		if (!v4)
-			goto LABEL_29;
-		if (v4 != 1)
-			goto LABEL_10;
-		if (currlevel < 0xFu)
-			goto LABEL_28;
-		v5 = LoadFileInMem("Gendata\\Cutgate.CEL", 0);
-		v6 = "Gendata\\Cutgate.pal";
-		goto LABEL_30;
+		switch(gnLevelTypeTbl[currlevel]) {
+		case 0:
+			sgpBackCel = LoadFileInMem("Gendata\\Cuttt.CEL", 0);
+			LoadPalette("Gendata\\Cuttt.pal");
+			progress_id = 1;
+			break;
+		case 1:
+			sgpBackCel = LoadFileInMem("Gendata\\Cutl1d.CEL", 0);
+			LoadPalette("Gendata\\Cutl1d.pal");
+			progress_id = 0;
+			break;
+		case 2:
+			sgpBackCel = LoadFileInMem("Gendata\\Cut2.CEL", 0);
+			LoadPalette("Gendata\\Cut2.pal");
+			progress_id = 2;
+			break;
+		case 3:
+			sgpBackCel = LoadFileInMem("Gendata\\Cut3.CEL", 0);
+			LoadPalette("Gendata\\Cut3.pal");
+			progress_id = 1;
+			break;
+		case 4:
+			if(currlevel < 15) {
+				sgpBackCel = LoadFileInMem("Gendata\\Cut4.CEL", 0);
+				LoadPalette("Gendata\\Cut4.pal");
+				progress_id = 1;
+			} else {
+				sgpBackCel = LoadFileInMem("Gendata\\Cutgate.CEL", 0);
+				LoadPalette("Gendata\\Cutgate.pal");
+				progress_id = 1;
+			}
+			break;
+		default:
+			sgpBackCel = LoadFileInMem("Gendata\\Cutl1d.CEL", 0);
+			LoadPalette("Gendata\\Cutl1d.pal");
+			progress_id = 0;
+			break;
+		}
+		break;
 	case WM_DIABPREVLVL:
-		v7 = &gnLevelTypeTbl[currlevel];
-		if (!*(v7 - 1))
-			goto LABEL_31;
-		v8 = *v7;
-		if (!v8)
-			goto LABEL_31;
-		v9 = v8 - 1;
-		if (!v9)
-			goto LABEL_10;
-		v10 = v9 - 1;
-		if (!v10) {
-		LABEL_9:
+		if(gnLevelTypeTbl[currlevel - 1] == 0) {
+			sgpBackCel = LoadFileInMem("Gendata\\Cuttt.CEL", 0);
+			LoadPalette("Gendata\\Cuttt.pal");
+			progress_id = 1;
+		} else {
+			switch(gnLevelTypeTbl[currlevel]) {
+			case 0:
+				sgpBackCel = LoadFileInMem("Gendata\\Cuttt.CEL", 0);
+				LoadPalette("Gendata\\Cuttt.pal");
+				progress_id = 1;
+				break;
+			case 1:
+				sgpBackCel = LoadFileInMem("Gendata\\Cutl1d.CEL", 0);
+				LoadPalette("Gendata\\Cutl1d.pal");
+				progress_id = 0;
+				break;
+			case 2:
+				sgpBackCel = LoadFileInMem("Gendata\\Cut2.CEL", 0);
+				LoadPalette("Gendata\\Cut2.pal");
+				progress_id = 2;
+				break;
+			case 3:
+				sgpBackCel = LoadFileInMem("Gendata\\Cut3.CEL", 0);
+				LoadPalette("Gendata\\Cut3.pal");
+				progress_id = 1;
+				break;
+			case 4:
+				sgpBackCel = LoadFileInMem("Gendata\\Cut4.CEL", 0);
+				LoadPalette("Gendata\\Cut4.pal");
+				progress_id = 1;
+				break;
+			default:
+				sgpBackCel = LoadFileInMem("Gendata\\Cutl1d.CEL", 0);
+				LoadPalette("Gendata\\Cutl1d.pal");
+				progress_id = 0;
+				break;
+			}
+		}
+		break;
+	case WM_DIABSETLVL:
+		if(setlvlnum == SL_BONECHAMB) {
 			sgpBackCel = LoadFileInMem("Gendata\\Cut2.CEL", 0);
 			LoadPalette("Gendata\\Cut2.pal");
 			progress_id = 2;
-			goto LABEL_33;
+		} else if(setlvlnum == SL_VILEBETRAYER) {
+			sgpBackCel = LoadFileInMem("Gendata\\Cutportr.CEL", 0);
+			LoadPalette("Gendata\\Cutportr.pal");
+			progress_id = 1;
+		} else {
+			sgpBackCel = LoadFileInMem("Gendata\\Cutl1d.CEL", 0);
+			LoadPalette("Gendata\\Cutl1d.pal");
+			progress_id = 0;
 		}
-		v11 = v10 - 1;
-		if (!v11)
-			goto LABEL_29;
-		if (v11 == 1)
-			goto LABEL_28;
-	LABEL_10:
-		sgpBackCel = LoadFileInMem("Gendata\\Cutl1d.CEL", 0);
-		LoadPalette("Gendata\\Cutl1d.pal");
-		progress_id = 0;
-		goto LABEL_33;
+		break;
 	case WM_DIABRTNLVL:
-	case WM_DIABSETLVL:
-		if (setlvlnum == SL_BONECHAMB)
-			goto LABEL_21;
-		if (setlvlnum != SL_VILEBETRAYER)
-			goto LABEL_10;
-		v5 = LoadFileInMem("Gendata\\Cutportr.CEL", 0);
-		v6 = "Gendata\\Cutportr.pal";
-		goto LABEL_30;
+		if(setlvlnum == SL_BONECHAMB) {
+			sgpBackCel = LoadFileInMem("Gendata\\Cut2.CEL", 0);
+			LoadPalette("Gendata\\Cut2.pal");
+			progress_id = 2;
+		} else if(setlvlnum == SL_VILEBETRAYER) {
+			sgpBackCel = LoadFileInMem("Gendata\\Cutportr.CEL", 0);
+			LoadPalette("Gendata\\Cutportr.pal");
+			progress_id = 1;
+		} else {
+			sgpBackCel = LoadFileInMem("Gendata\\Cutl1d.CEL", 0);
+			LoadPalette("Gendata\\Cutl1d.pal");
+			progress_id = 0;
+		}
+		break;
 	case WM_DIABWARPLVL:
-		v5 = LoadFileInMem("Gendata\\Cutportl.CEL", 0);
-		v6 = "Gendata\\Cutportl.pal";
-		goto LABEL_30;
+		sgpBackCel = LoadFileInMem("Gendata\\Cutportl.CEL", 0);
+		LoadPalette("Gendata\\Cutportl.pal");
+		progress_id = 1;
+		break;
+	case WM_DIABLOADGAME:
+		sgpBackCel = LoadFileInMem("Gendata\\Cutstart.CEL", 0);
+		LoadPalette("Gendata\\Cutstart.pal");
+		progress_id = 1;
+		break;
+	case WM_DIABNEWGAME:
+		sgpBackCel = LoadFileInMem("Gendata\\Cutstart.CEL", 0);
+		LoadPalette("Gendata\\Cutstart.pal");
+		progress_id = 1;
+		break;
 	case WM_DIABTOWNWARP:
 	case WM_DIABTWARPUP:
-		v12 = gnLevelTypeTbl[plr[myplr].plrlevel];
-		if (!v12)
-			goto LABEL_31;
-		v13 = v12 - 2;
-		if (!v13) {
-		LABEL_21:
+		switch(gnLevelTypeTbl[plr[myplr].plrlevel]) {
+		case 0:
+			sgpBackCel = LoadFileInMem("Gendata\\Cuttt.CEL", 0);
+			LoadPalette("Gendata\\Cuttt.pal");
+			progress_id = 1;
+			break;
+		case 2:
 			sgpBackCel = LoadFileInMem("Gendata\\Cut2.CEL", 0);
 			LoadPalette("Gendata\\Cut2.pal");
-			progress_id = SL_BONECHAMB;
-			goto LABEL_33;
-		}
-		v14 = v13 - 1;
-		if (v14) {
-			if (v14 != 1)
-				goto LABEL_33;
-		LABEL_28:
-			v5 = LoadFileInMem("Gendata\\Cut4.CEL", 0);
-			v6 = "Gendata\\Cut4.pal";
-		} else {
-		LABEL_29:
-			v5 = LoadFileInMem("Gendata\\Cut3.CEL", 0);
-			v6 = "Gendata\\Cut3.pal";
+			progress_id = 2;
+			break;
+		case 3:
+			sgpBackCel = LoadFileInMem("Gendata\\Cut3.CEL", 0);
+			LoadPalette("Gendata\\Cut3.pal");
+			progress_id = 1;
+			break;
+		case 4:
+			sgpBackCel = LoadFileInMem("Gendata\\Cut4.CEL", 0);
+			LoadPalette("Gendata\\Cut4.pal");
+			progress_id = 1;
+			break;
 		}
-	LABEL_30:
-		sgpBackCel = v5;
-		LoadPalette(v6);
-		progress_id = 1;
-	LABEL_33:
-		sgdwProgress = 0;
-		return;
+		break;
 	case WM_DIABRETOWN:
-	LABEL_31:
-		v5 = LoadFileInMem("Gendata\\Cuttt.CEL", 0);
-		v6 = "Gendata\\Cuttt.pal";
-		goto LABEL_30;
-	case WM_DIABNEWGAME:
-	case WM_DIABLOADGAME:
-		v5 = LoadFileInMem("Gendata\\Cutstart.CEL", 0);
-		v6 = "Gendata\\Cutstart.pal";
-		goto LABEL_30;
+		sgpBackCel = LoadFileInMem("Gendata\\Cuttt.CEL", 0);
+		LoadPalette("Gendata\\Cuttt.pal");
+		progress_id = 1;
+		break;
 	default:
 		app_fatal("Unknown progress mode");
-		goto LABEL_33;
+		break;
 	}
+
+	sgdwProgress = 0;
 }