[1.5.1-1.5.2] Weapon Cover Tilt (WCT) (UPDATE 12.1)  

This mod tries to emulate gun dimensions and makes player raise it up when hugging walls and covers.
There are few features and caveats you MUST know before using it, PLEASE READ:

1. This mod utilizes hud adjustment functionality in a creative way, and while it was tested, its not perfect and sometimes might lead to bugs (see below)
2. The animation speed and trigger radius depends on the gun. The more heavy the gun, the slower the animation. Pistols have reduced trigger radius, you can be at the wall really close for player to raise the weapon
3. If your weapon has a 2D scope, you can't aim the scope when the weapon is raised. This is done to ensure no bugs and glitches happens at that moment, otherwise you would zoom in with no scope texture, etc. To compensate for that, guns with scopes have slightly increased speed of return to initial position compared to non-scoped weapons
4. To add to p.3, sometimes the gun can bug out and not trigger scope texture when aiming the scope. It happens rarely, but its a possibility, more often when trying mount the scope onto weapon while its in raised state. Unmounting & remounting the scope while out of cover should fix the issue. Additionaly you can save the game and reload it. (thanks to LifeDecoded1997 for the feedback)
5. For smoothest experience i recommend using EFT Reposition mod Moddb.com. The animation with other positions might be a bit sharp, but the mod compatible with any positions, including vanilla ones.
6. Archive includes patches for most popular weapon packs (Blindsides pack, BaS, Firebreath and BAN's mods, Souvlaki's Fal, AR Pack DLTX)
7. When the weapon is lowered, or if the weapon is used with flashlight/detector, the animation won't be triggered due to wacky left hand animations
8. The animation won't be triggered upfront the enemy stalker or a monster

If you have noticed errors or something else, let me know in comments, thank you