Scratch it looks like there is an issue with the missile design display still. The speed and range appear to be way off.
Reverse engineering gives me this tech that you're using:
Magneto-plasma Drive Technology
Fuel Consumption: 0.9 Litres per Engine Power Hour
Maximum Engine Power Modifier x1.25(missile 2.5)
Gun-Type Fission Warhead: Strength: 2 x MSP (base)
Missile Agility unknown
Missile Size: 1. 2 MSP (0. 06 HS) Warhead: 1 Armour: 0 Manoeuvre Rating: 10
Speed: 6700 km/s Engine Endurance: 216. 1 hours Range: 5 213. 2m km
Cost Per Missile: 0. 35
Chance to Hit: 1k km/s 67% 3k km/s 20% 5k km/s 13. 4% 10k km/s 6. 7%
Materials Required: 0. 25x Tritanium 0. 1x Gallicite Fuel x1250
Development Cost for Project: 35RP
Based on this you have:
Engine .2msp
Warhead .5msp
fuel .5msp (1250 liters)
(costing matches)
Speed should be 6,667kps, flight time 467.89 minutes, range 187,156,839km
You need to reasearch warhead strength and Maximum Engine Power Modifier at a minimum. Probably Missile Agility as well, AMM's need very good agility.
With your current tech the best you can do is a .4msp engine, .5msp warhead and .1msp fuel. Speed becomes 16,000kps and range 72mkm.
Take agility to 64, warhead to 5, fuel to .6, and Power modifier to x4. From here you can have a .7msp engine, .2msp warhead, .0861msp Agility(16), .0139msp fuel. This gives a 1msp missile with a 1pt warhead with of speed 44,800kps and a range of 6.8mkm. Flight time would be 2.53 minutes.
