LoadMissileGFX fix - CEL -> CL2 (#701)

Source/missiles.cpp

@@ -1467,17 +1467,17 @@ void __fastcall LoadMissileGFX(BYTE mi)
 
 	mfd = &misfiledata[mi];
 	if (mfd->mFlags & MFLAG_ALLOW_SPECIAL) {
-		sprintf(pszName, "Missiles\\%s.CEL", mfd->mName);
+		sprintf(pszName, "Missiles\\%s.CL2", mfd->mName);
 		file = LoadFileInMem(pszName, 0);
 		for (i = 0; i < mfd->mAnimFAmt; i++)
 			mfd->mAnimData[i] = &file[((int *)file)[i]];
 	} else if (mfd->mAnimFAmt == 1) {
-		sprintf(pszName, "Missiles\\%s.CEL", mfd->mName);
+		sprintf(pszName, "Missiles\\%s.CL2", mfd->mName);
 		if (!mfd->mAnimData[0])
 			mfd->mAnimData[0] = LoadFileInMem(pszName, 0);
 	} else {
 		for (i = 0; i < mfd->mAnimFAmt; i++) {
-			sprintf(pszName, "Missiles\\%s%i.CEL", mfd->mName, i + 1);
+			sprintf(pszName, "Missiles\\%s%i.CL2", mfd->mName, i + 1);
 			if (!mfd->mAnimData[i]) {
 				file = LoadFileInMem(pszName, 0);
 				mfd->mAnimData[i] = file;