I should clarify that most of the guns are from gravity cat's special weapons, which aren't instantaneous and have bullet drop, so you will need to predict where the target will be and aim at the right angle.
There are some of his actual raycasting weapons used, but they don't have good accuracy. if anything is too powerful with no skill, it's the mosin nagant. It has great accuracy and good range, but it has a slow fire rate and isn't that accurate for a bolt action rifle. It's basically a mix between a battle rifle and a dedicated sniper, and some may prefer actual snipers over it. I wouldn't worry too much about it. Besides, the pack has a fully automatic shotgun, and I've included it in the game. Raycasting may be the least of your worries.
I've also made sure to add plenty of cover and alternative routes.
I was planning on using different weapon packs for the game since the very start. I really like swollow's, blockombat, and some of bushido's packs.