He just makes it as a hobby for himself, and it's very kind of him to let us play it
On that note, in my latest campaign I've been more or less blockaded into the Sol system and a few neighboring systems by an extremely powerful group of aliens.
So far they haven't shown any interest in coming into Sol, and my few engagements with their advanced ships have been a collection of routes and Pyrrhic victories. My last attempt to defeat their force in the system of Glasgow had 40 of Humanity's finest warships go up against two huge 45,000 ton vessels and destroy them at the cost of 7 vessels, only to then detect six more vessels closing which destroyed the fleet using thousands of size one missiles traveling at over 100,000 km/s. But at least they've shown that the enemy is not unstoppable.
A replacement fleet is under construction using the newly developed fusion drive technology that the previous fleet lacked (I can neither confirm nor deny that I just threw all the outdated ships at the enemy instead of refiting them). The larger ships now include shield technology after a previous force discovered that armor doesn't protect well against strength 20 warheads (shock damage is really lethal).
Broadsword class Jump Cruiser 18,000 tons 544 Crew 3975 BP TCS 360 TH 3000 EM 1800
8333 km/s JR 5-50 Armour 5-61 Shields 60-360 Sensors 11/11/0/0 Damage Control Rating 23 PPV 24
Maint Life 3.4 Years MSP 3202 AFR 111% IFR 1.6% 1YR 421 5YR 6318 Max Repair 750 MSP
Intended Deployment Time: 36 months Spare Berths 1
Cruiser Jump Drive Max Ship Size 18000 tons Distance 50k km Squadron Size 5
Large Military Internal Fusion Drive (2) Power 1500 Fuel Use 68.89% Signature 1500 Exp 15%
Fuel Capacity 2,250,000 Litres Range 32.7 billion km (45 days at full power)
Epsilon R360/360 Shields (20) Total Fuel Cost 300 Litres per hour (7,200 per day)
Light Railgun (8x4) Range 40,000km TS: 8333 km/s Power 3-3 RM 4 ROF 5 1 1 1 1 0 0 0 0 0 0
Railgun Fire Control (2) Max Range: 80,000 km TS: 10000 km/s 88 75 62 50 38 25 12 0 0 0
Tokamak Fusion Reactor (1) Total Power Output 24 Armour 0 Exp 5%
Active Search Sensor MR35-R1 (1) GPS 252 Range 35.3m km MCR 3.8m km Resolution 1
Thermal Sensor TH1-11 (1) Sensitivity 11 Detect Sig Strength 1000: 11m km
EM Detection Sensor EM1-11 (1) Sensitivity 11 Detect Sig Strength 1000: 11m km
This design is classed as a Military Vessel for maintenance purposes
Invincible class Missile Cruiser 18,000 tons 584 Crew 3962 BP TCS 360 TH 3000 EM 1800
8333 km/s Armour 5-61 Shields 60-360 Sensors 1/1/0/0 Damage Control Rating 23 PPV 81
Maint Life 4.16 Years MSP 3192 AFR 111% IFR 1.6% 1YR 295 5YR 4428 Max Repair 750 MSP
Intended Deployment Time: 36 months Spare Berths 0
Magazine 468
Large Military Internal Fusion Drive (2) Power 1500 Fuel Use 68.89% Signature 1500 Exp 15%
Fuel Capacity 2,000,000 Litres Range 29.0 billion km (40 days at full power)
Epsilon R360/360 Shields (20) Total Fuel Cost 300 Litres per hour (7,200 per day)
ASM Missile Tube II (18) Missile Size 6 Rate of Fire 75
Missile Fire Control FC386-R120 (2) Range 386.5m km Resolution 120
Javelin IV ASM6 (78) Speed: 46,700 km/s End: 65.6m Range: 183.9m km WH: 9 Size: 6 TH: 233/140/70
Active Search Sensor MR386-R120 (1) GPS 30240 Range 386.5m km Resolution 120
Missile to hit chances are vs targets moving at 3000 km/s, 5000 km/s and 10,000 km/s
This design is classed as a Military Vessel for maintenance purposes
Ark Royal III class Missile Destroyer 8,000 tons 243 Crew 1943.5 BP TCS 160 TH 1500 EM 0
9375 km/s Armour 6-35 Shields 0-0 Sensors 1/1/0/0 Damage Control Rating 9 PPV 27
Maint Life 3.91 Years MSP 1458 AFR 53% IFR 0.7% 1YR 151 5YR 2269 Max Repair 750 MSP
Intended Deployment Time: 24 months Spare Berths 1
Magazine 252
Large Military Internal Fusion Drive (1) Power 1500 Fuel Use 68.89% Signature 1500 Exp 15%
Fuel Capacity 1,000,000 Litres Range 32.7 billion km (40 days at full power)
ASM Missile Tube II (6) Missile Size 6 Rate of Fire 75
Missile Fire Control FC386-R120 (1) Range 386.5m km Resolution 120
Javelin IV ASM6 (42) Speed: 46,700 km/s End: 65.6m Range: 183.9m km WH: 9 Size: 6 TH: 233/140/70
Active Search Sensor MR386-R120 (1) GPS 30240 Range 386.5m km Resolution 120
Missile to hit chances are vs targets moving at 3000 km/s, 5000 km/s and 10,000 km/s
This design is classed as a Military Vessel for maintenance purposes
Illustrious III class Destroyer 7,500 tons 237 Crew 1816.5 BP TCS 150 TH 1500 EM 0
10000 km/s Armour 6-34 Shields 0-0 Sensors 1/1/0/0 Damage Control Rating 9 PPV 30
Maint Life 3.84 Years MSP 1362 AFR 50% IFR 0.7% 1YR 145 5YR 2181 Max Repair 750 MSP
Intended Deployment Time: 24 months Spare Berths 0
Large Military Internal Fusion Drive (1) Power 1500 Fuel Use 68.89% Signature 1500 Exp 15%
Fuel Capacity 1,050,000 Litres Range 36.6 billion km (42 days at full power)
Light Railgun (10x4) Range 40,000km TS: 10000 km/s Power 3-3 RM 4 ROF 5 1 1 1 1 0 0 0 0 0 0
Railgun Fire Control (2) Max Range: 80,000 km TS: 10000 km/s 88 75 62 50 38 25 12 0 0 0
Miniature Fusion Reactor (2) Total Power Output 6 Armour 0 Exp 5%
Tokamak Fusion Reactor (1) Total Power Output 24 Armour 0 Exp 5%
Backup PD Sensor (1) GPS 84 Range 11.8m km MCR 1.3m km Resolution 1
This design is classed as a Military Vessel for maintenance purposes
One might notice the complete lack of energy weapons or turrets. Due to other research priorities I've instead been experimenting with high speed craft using overcharged engines, though I plan to switch to more conventional designs once the enemy is no longer knocking at the door.