Tunnel Fighting
From Compendium of Worldly Lore
Needs review
Source: Dungeonscape
Description: You are adept at maneuvering and fighting in tight spaces and underground passages.
Prerequisites: Base Attack Bonus +1
Required for: Stoneback, Tunnel Riding
When squeezing into or through a tight space, you do not take a penalty on your attack rolls or to your Armor Class.
Special
A fighter can select Tunnel Fighting as one of his fighter bonus feats.
Normal
Each movement into or through a narrow space counts as if it were 2 squares, and while squeezed in a narrow space, you take a -4 penalty on your attack rolls and a -4 penalty to your Armor Class .