Yeah, I'll be honest: After making so many of these, I've gotten tired of setting this up over and over again, so let's get straight to the point with the currently known issues:

    
• "I can't turn on my flashlight." If you experience this, this means the map wiped you of all your weapons in an abrupt manor, and for some reason, this lack of weapons causes VManip Flashlight to simply not work. Of course, I can't fix this myself, you'd have to go complain to the mod creator to get him to fix it. However, for a temporary solution, you can either disable the add-on or just put "impulse 100" in console.
      
• DSteps may cause footstep sounds to simply not play. If this happens, just disable or uninstall it. It isn't too critical for the purposes of this collection anywho.
      
• [Misc movement related issue]. You can change the walk (or "jog") and run speeds in TacMove's settings. The default G-mod walk value is 250 and the default sprint value is 500; set the values to that, and you should be able to do any G-mod parkour crap just fine. If you still can't cope, particularly with only sprinting forwards, then you'll have to disable/unsubscribe from Animated Sprinting. Animated Sprinting makes sprinting look better but also makes it so you can only sprint forward, which I found to be scarier. Disable these at your discretion.
      
• T-posing/[misc animation issues]. This is somewhat common, and usually easy to fix. Simply uninstall and reinstall DynaBase, and that's usually all it takes.
      
• Spazzing camera and EXTREMELY poor FPS after installation. This appears to be a somewhat rare issue, however, recent updates to HORRIFY Garry's Mod seem to have largely fixed this. If you're still getting low FPS, it is recommended to follow the standard FPS advice (use the x84/64-bit branch, multicore, etc), and to try disabling Extended Render in-particular first.
      
• [Misc annoying camera issue]. If you're experiencing issues with the camera not facing where you're walking occasionally, for example, this is likely because you have Automatic Player Looking or a mod similar to it installed, likely because the aforementioned mod used to be included in the collection. Simple disable or unsubscribe from it or other mods that affect your third-person camera (other than what's included hereof course) and that'll likely fix it.

I'll try to assist if you have any issues, but generally speaking you should try to simply disable the obvious suspects first, and use this thread as a last resort.