Let’s be clear: using on Guns of Boom violates the game’s Terms of Service (Section 3.2 – “Cheating and unfair advantages”). Game Insight can, and does, pursue legal action against repack distributors (rarely individuals).

Increases walking or running speed, though sometimes limited to specific weapon classes like assault rifles.

I notice you're asking about scripts for using Lua with GameGuardian (a memory editing tool), and specifically mentioning a "repack."

Many legitimate games use Lua to handle modding APIs, user interface scripting, and game logic.