I tried this with Hexen and got this error:
OS: Windows 11 (or higher) (NT 10.0) Build 26100
GZDoom version g4.14.0
W_Init: Init WADfiles.
adding C:/Program Files/Gzdoom 4-14-0a/gzdoom.pk3, 689 lumps
adding C:/Program Files/Gzdoom 4-14-0a/game_support.pk3, 3308 lumps
adding ./HEXEN.WAD, 4270 lumps
adding C:/Program Files/Gzdoom 4-14-0a/game_widescreen_gfx.pk3, 214 lumps
adding RustAndBones.pk3, 1142 lumps
S_Init: Setting up sound.
I_InitSound: Initializing OpenAL
Opened device IOpenAL Soft on Speaker (Realtek(R) Audio)
EFX enabled
I_InitInput
I_StartupMouse
I_StartupKeyboard
I_StartupXInput
I_StartupRawPS2
I_StartupDirectInputJoystick
Vulkan device: IAMD Radeon(TM) Graphics
Vulkan device type: integrated gpu
Vulkan version: 1.3.280 (api) 2.0.302 (driver)
Max. texture size: 16384
Max. uniform buffer range: -1
Min. uniform buffer offset alignment: 16
Resolution: 1366 x 768
I_Init: Setting up machine state.
CPU speed: 2795 MHz
CPU Vendor ID: AuthenticAMD
Name: AMD Ryzen 5 7520U with Radeon Graphics
Family 23 (23), Model 160, Stepping 0
Features: SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX AVX2 F16C FMA3 BMI1 BMI2 HyperThreading
V_Init: allocate screen.
ST_Init: Init startup screen.
Checking cmd-line parameters...
S_InitData: Load sound definitions.
G_ParseMapInfo: Load map definitions.
Texman.Init: Init texture manager.
IScript warning, "RustAndBones.pk3:textures.guns" line 396:
IUnknown patch 'CEYEA0' in texture 'BEYEA0'
IScript warning, "RustAndBones.pk3:textures.guns" line 402:
IUnknown patch 'CEYEB0' in texture 'BEYEB0'
IScript warning, "RustAndBones.pk3:textures.guns" line 408:
IUnknown patch 'CEYEC0' in texture 'BEYEC0'
IScript warning, "RustAndBones.pk3:textures.guns" line 414:
IUnknown patch 'MISLB0' in texture 'BEYED0'
IScript warning, "RustAndBones.pk3:textures.guns" line 420:
IUnknown patch 'MISLC0' in texture 'BEYEE0'
IScript warning, "RustAndBones.pk3:textures.guns" line 426:
IUnknown patch 'MISLD0' in texture 'BEYEF0'
Execution could not continue.
Script error, "RustAndBones.pk3:animdefs" line 27:
Bad syntax.