A homebrew middle-fantasy/science fiction d20 roleplaying game system based on Pathfinder
Each Mech or Vehicle model has slots, and set amount of points called Ordinance Points, or OP for short.
4 OP
Fires 3 missiles as standard action, each dealing HE damage of 1d12+5. The missiles land in random vicinity of the enemies. Mech Piloting Skill check of DC 15 allows you to pin point targets. Range 100 ft. Roll 1d4 to determine rounds requires to reload.
2 OP
Launches a single mortar shell, dealing HE damage equal to 1d6+4 as standard action. Can fire over obstacles, and load smoke shells to provide smoke cover. Range 120 ft.
4 OP
A devastating single shot weapon, contains one shell in magazine, reloads automatically every round. Deals 2d8 true damage, each penetration reduces damage by 50%, and can penetrate upto 3 targets maximum. Firing Gauss Rifle is standard action.
5 OP
A massive, 10.5 mm Chaingun, it deals massive 4d4 damage to a single target, OR, can sweep in a 30 ft cone to deal 4 damage to all targets.
Everytime it fires, it gains 3 heat. At 5 heat, the weapon is disabled. Loses 1 heat per round passively, not firing the weapon cools it down at double rate.
Gain 5 additional armor. Can be applied multiple times.
Gain 30 ft jump range. Cooldown is 1d4 rounds. Each application bolsters range by 15 ft. At every 30 ft range gained after 1st increment, increase the Cooldown by 1 round.
Gain 1 additional AoO.
Missiles can be launched to intercept other missile projectiles.
A single, selected missile slot reload in 1 round. Can be attached multiple times.
Gain +10 movement speed.
Gains DR 3/- against AP damage and +1 AC.
When hunkering down, gain 25 Aura, and project it in 15 ft radius. Any projectile attack made to targets inside the radius, the shield takes the damage. Shield refreshes every round. If shield shatters by taking too much damage, RSS is unavailable for 1d3 rounds.