| Sub Fighter |
| Sub Fighter: Huge Vehicle; |
| hp 90; |
| Top Spd 30; Acc 4; Dec 3; Hand +4; |
| Sensor +6; Stealth 15; |
| AC 18 (–2 size, +10 natural, +5 armor, –5 Dex); |
| SQ surveillance sensors, vehicle, hardness 10; |
| Fuel 400. |
| Stations: Pilot 1. |
| Cargo: 100 lb. |
| Cost: 1,000,000 cr. |
| Weapon: Quad multishot (8) torpedo launcher battery; Fire arc: front; Attack bonus: +2 (targeting computer); Damage: By torpedo; Range: By torpedo. |
| Sub Patrolboat |
| Sub Patrolboat: Huge Vehicle; |
| hp 90; |
| Top Spd 14; Acc 2; Dec 1; Hand –2; |
| Sensor +6; Stealth 18; |
| AC 23 (–2 size, +10 natural, +10 armor, –5 Dex); |
| SQ maneuv spars, sensor baffles, surveillance sensors, vehicle, hardness 10; |
| Fuel 500. |
| Stations: Pilot 1, Sensor 1. |
| Cargo: 500 lb. |
| Cost: 2,500,000 cr. |
| Weapon: Twin maser cannons (battery); Fire arc: front; Attack bonus: +2 (targeting computer); Damage: 6d10; Range: 10. |
| Weapon: Multishot (16) missile launcher; Fire arc: turret; Attack bonus: +2 (targeting computer); Damage: By missile; Speed: By missile. |
| Sub Cruiser |
| Sub Cruiser: Gargantuan Vehicle; |
| hp 100; |
| Top Spd 14; Acc 3; Dec 3; Hand –3; |
| Sensor +5; Stealth 15; |
| AC 21 (–4 size, +10 natural, +10 armor, –5 Dex); |
| SQ antimissile system (1 attack/round), vehicle, hardness 20; |
| Fuel 10,000. |
| Stations: Pilot 1, Sensor 1, Gunner 2, Crew 10. |
| Cargo: 3 tons. |
| Cost: 500,000 cr. |
| Weapon: Twin maser cannons (battery); Fire arc: front; Attack bonus: +5 (targeting computer); Damage: 6d10; Range: 10. |
| Weapon: Two multishot (16) missile launchers; Fire arc: turret; Damage: By missile; Speed: By missile. |
| Sub Carrier |
| Sub Carrier: Colossal III Vehicle; |
| hp 400; |
| Top Spd 4; Acc 1; Dec 1; |
| Hand –8; Sensor +10; Stealth 5; |
| AC 18 (–32 size, +25 natural, +20 armor, –5 Dex); |
| SQ antimissile system (up to 2 attacks per round), surveillance sensors, vehicle, hardness 50; |
| Fuel 50,000*. |
| Stations: Sensor 4, Gunner 2, Crew 600. |
| Cargo: 500 tons, 100 patrolboats and fighters. |
| Cost: 1,500,000 cr. |
| Weapon: Two twin maser cannons (battery); Fire arc: turret; Attack bonus: +5 (targeting computer); Damage: 6d10x2; Range: 10. |
| Weapon: Quad maser cannons (battery); Fire arc: front; Attack bonus: +5 (targeting computer); Damage: 6d10x4; Range: 10. |
| Weapon: Two multishot (16) missile launchers; Fire arc: turret; Damage: By missile; Speed: By missile. |
| Sub Battleship |
| Sub Battleship: Colossal III Vehicle; |
| hp 400; |
| Top Spd 5; Acc 1; Dec 1; Hand –8; |
| Sensor +12; Stealth 5; |
| AC 18 (–32 size, +25 natural, +20 armor, –5 Dex); |
| SQ antimissile system (up to 4 attacks/round), surveillance sensors, vehicle, hardness 50; |
| Fuel 900. |
| Stations: Sensor 5, Gunner 10, Crew 100. |
| Cargo: 400 tons. |
| Cost: 1,250,000 cr. |
| Weapon: Four twin maser cannons; Fire arc: turret, Attack bonus: +5; Damage: 6d10x2; Range: 10. |
| Weapon: Two quad maser cannons (battery); Fire arc: front; Attack bonus: +5 (targeting computer); Damage: 6d10x4; Range: 10. |
| Weapon: Four multishot (24) missile launcher; Fire arc: turret; Damage: By missile; Speed: By missile. |