diff --git a/.gitmodules b/.gitmodules
index 1c55655..8b359a3 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "cmake/clang"]
 	path = cmake/clang
 	url = https://github.com/Xaymar/cmake-clang
+[submodule "third-party/zlib-ng"]
+	path = third-party/zlib-ng
+	url = https://github.com/zlib-ng/zlib-ng
diff --git a/extra/010 Editor/stingray_bundle.bt b/extra/010 Editor/stingray_bundle.bt
index 30d4612..b359310 100644
--- a/extra/010 Editor/stingray_bundle.bt	
+++ b/extra/010 Editor/stingray_bundle.bt	
@@ -27,6 +27,10 @@
 struct stingray_bundle_t {
     uint32_t __unk;
     uint32_t count;
+    // Vermintide 1's format differs.
+    //uint32_t __unk;
+    //uint32_t __unk;
+    //uint32_t __unk;
     struct {
         uint32_t count;
         struct {
diff --git a/extra/010 Editor/stingray_stream.bt b/extra/010 Editor/stingray_stream.bt
index 838dab6..e64da9b 100644
--- a/extra/010 Editor/stingray_stream.bt	
+++ b/extra/010 Editor/stingray_stream.bt	
@@ -41,6 +41,7 @@ struct stingray_stream_t {
 	LittleEndian();
     uint32_t __unk <format=decimal>;
     uint32_t __unk <format=hex>;
+    do {
     struct {
         uint32_t size <format=decimal>;
         struct {
@@ -57,7 +58,8 @@ struct stingray_stream_t {
         }        
         char data[size - 6];
         uint32_t adler32;
-    } zlib[2] <optimize=false>;
+    } zlib <optimize=false>;
+    } while (FTell() != FileSize());
 };
 
 #ifndef IS_INCLUDE
diff --git a/third-party/zlib-ng b/third-party/zlib-ng
new file mode 160000
index 0000000..93b870f
--- /dev/null
+++ b/third-party/zlib-ng
@@ -0,0 +1 @@
+Subproject commit 93b870fbefa3dc788625ec2c752bd2abdec601d8