To edit existing weapons:

Change the weapon entity (weapon_) to whatever weapon you wish. You can keep the same name as the weapon you've changed, to avoid another step.

To Add another weapon:

Create the new weapon_[weapontype], and change it's name too whatever you like (we'll call it [gun] for now)

Create a new point_template entity (I advise Copy paste/Shitf+D instead of making a new one).
(Re)Name it template_[gun]template, replacing [gun] with whatever your weapons name is (ex: for the deagle its template_deagletemplate)


Then, select the logic_case entity. Go to "Case 05" and in the parameter box, set it to the name of your newly created template_[gun]template.

Finally, go to the logic_case's Outputs and click Add:

My Output Named ->	OnCase05
Target Entities Named ->	template_[gun]template
Via This Input ->	ForceSpawn

And now you're done!