references:ba2

This reference was written for Fallout 4 and may be only partially applicable to other games.

This page is under construction.

BA2: A .ba2 file, short for Bethesda Archive 2. Combines multiple data files into a single file with optional compression.
Module: Any .esm, .esl, or .esp file. Also referred to as a Plugin.

There are two archive formats and each has it's own limit.
The total number of archives is not relevant to the limit.

General: 256 — Exceeding this results in a crash at the main menu.
Texture: 255 — Exceeding this causes the game to load the wrong textures for objects.

There is currently no bug-free way to increase these limits.
Mods that attempt to increase the limit should have those options disabled.