Ordnance points (OP) are used in the refit screen to add flux capacitors and vents, weapons and hullmods to ships. Each ship has a limited amount of OP to spend and every weapon and hullmod costs different amounts of OP to equip.

The Technology aptitude of the skill tree increases the OP available to all ships in the fleet by 1% per level, and the Computer Systems and Mechanical Engineering skills add another 1% per level (for a total maximum of +30%). Optimized Assembly, the level 10 perk of the Ordnance Expertise skill, reduces the OP cost of weapons on all ships in the fleet by 1/2/4, depending on mount size.