This is Millenia's AKS-74U model, rigged for Sven Co-op Insurgency Weapons Project; originally ported to GoldSrc by Millenia themselves, and featuring chopped UV maps and textures with baked lighting. It was a rather quick project, and the new model fits the animations pretty well. The pack features the option of 3 hands (default SC, OpFor, and classic HEV), and low-poly PeeWees. Magazine model was not changed, as I wasn't been able to find a way to make it look good to justify recompiling the model of all the Insurgency magazines.
Source files are also included, which includes the original AKS-74U .smd (mirrored and rotated for convenience), and decompiles of view models and PeeWees.
Installation instructions:
First, you must locate "svencoop_addon" folder inside your Sven Co-op base directory. If it's not there, just create it.
"Hands Options" folder contains options of three hands, each includes "models" folder. Choose your preferred hands, and drag-and-drop the included "models" folder into your "svencoop_addon" directory.
"PeeWees" folder contains player and world models. Just drag-and-drop the "models" folder into your "svencoop_addon" directory, and you're good to go.
Keep in mind, that you may be asked to replace the original models. If you don't want to replace them, simply remove them from the folder or rename them.