<{2. Mobile Foundry Path}>
{Description: All crafting, refining, and manufacturing inside the train is accelerated by x10. Resource yield from processing increased by x3. Carriage count increases by 1 per 3 levels.}
{Additional Perks: Workshop modules upgrade cost -60%, Unlock automated production lines, Storage efficiency x5 (stacking/compression tech), Fuel efficiency +50% when self-produced, Unlock: Assembly Line System}
<{3. Mobile Fortress Path}>
{Description: Train interior gains defensive spatial reinforcement. Boarding enemies suffer suppression effects and spatial disorientation. Carriage count increases by 1 per 3 levels}
{Additional Perks: Internal defense systems effectiveness x10, Damage taken inside train -70%, Unlock internal defense constructs/traps, Emergency barrier auto-deploy when durability <30%, Unlock: Internal Defense Grid}
<{4. Pocket Dimension Path}>
