Weapon and ammo editing OXCE

[Sgt. Strike]

I am not sure where this really goes, however, I would like to edit the weapons, the ground ones, like I did with X-Com UFO Defense and TFTD, to where I can adjust the TU's used to shoot the weapon, the accuracy, and the amount of ammo in each clip. Or if the weapon uses ammo, such as the laser weapons. I editied my OBdata.dat, but that doesn't affect OXCE weapons for some reason. I am wondering if someone can point me the way so I can edit the weapons.

[Meridian]

items.rul

I.e. this file: https://github.com/MeridianOXC/OpenXcom/blob/oxce-plus/bin/standard/xcom1/items.rul

Handbook: https://www.ufopaedia.org/index.php/Ruleset_Reference_Nightly_(OpenXcom)#Items