Tactical shoot houses; modular training structures used for training with firearms; modular houses or other structures constructed of armored walls that stop and capture bullets preventing ricochet or penetration through a wall; tactical training modular structures that can be reconfigured to different dimensions while preventing the danger of ricochet and wall penetration from live fire; standardized, modular, and armored walls, ceilings, and doors used in constructing reconfigurable tactical shoot houses or other structures; shoot houses, training structures having walls for absorbing projectiles, namely, bullets, shoot houses having surfaces with bullet absorbing material