Wouldn't it be better that Speed is your chance to hit and Agility is your chance to avoid being hit? If both affect both, then it's just another Excel sheet where you punch in numbers and the macro tells you where the sweet spot lies. If they affect different things, then you would value them differently depending on what the purpose of that missile is - attacking other missiles, avoiding AMMs, avoiding PD, hitting planets, hitting ships, and so on.
Or am I barking up the wrong tree?
Agreed that they should see a change, right now speed is just the better agility, though depending on your tech levels, there may be better gains in improving one or the other.
Suppose we took the radius of a sphere representing the volume of an entity, using the targets tonnage as the "volume" value. Divide the entity's speed by that "radius", and divide that result by 500 to compress the numbers a bit more, then in normal aurora fashion, truncate to one or two decimal places, lets go with one place.
Tons | "Radius" | Speed | "Agility" |
2.75 | 0.869 | 80000 | 184.1 |
5.5 | 1.095 | 70000 | 127.9 |
11 | 1.38 | 60000 | 87 |
16.5 | 1.579 | 50000 | 63.3 |
33 | 1.99 | 40000 | 40.2 |
50 | 2.285 | 40000 | 35 |
250 | 3.908 | 30000 | 15.4 |
500 | 4.924 | 30000 | 12.2 |
750 | 5.636 | 20000 | 7.1 |
1000 | 6.204 | 20000 | 6.4 |
2000 | 7.816 | 20000 | 5.1 |
3000 | 8.947 | 20000 | 4.5 |
5000 | 10.608 | 20000 | 3.8 |
Note that 2.75, 5.5, 11, 33, and 50 are missile sizes 1, 2, 4, 6, 12, and 18 respectively. If you do the math on sensors, an s6 must be 6*2.75=16.5 tons or the ranges don't match up for MCR against an S6 missile.
If your agility is more than 5 times higher than theirs, there is no penalty to the intercept, If not, then ratio/5 is the accuracy from agility.
So a 16.5t (s6) missile at 50kkm/s has little issue intercepting a 500t fighter at 30kkms, since its 5.19x more "agile", or 104% agile enough. An s12(33t) missile at 40kkms would have some issues, being only 3.3x as agile, or 66% agile enough. Take that 40.2 agility, divide by 66%, get 61 agility, hit that rating, you get 100% in this match up. That means you'd need 20.8 more AGI, which at 200AGI/MSP is 0.104MSP per missile MSP, or 1.248msp on AGI to get 100% chance.
This means ASM's will pretty much never need AGI to get kills against ships. At the same speed, just by virtue of size, an s6 has no penalty against anything larger than ~1000t, and s12 against 2000t. If they are faster, no the same speed as that example, then the targets can be smaler to have 100% chance, with no additional agility.
So what about evasive use of agility?
Well, lets take an example of 2.75t(s1) intercepting 33t(s12), with speeds of 80kkkms and 40kkms respectively. The ratio is currently 4.57, which means the AMM has a ~92% intercept chance. Again, assuming 200 AGI/MSP tech, if the ASM added 1 MSP of AGI, then it adds 200/s12 in agility, which is 8.5 agility, lifting itself from 40.2 to 48.7 so the ratio moves from 4.57 to 3.78, which is a 75% chance.
If it worked like that, you could ignore it for ASMs, and possibly some AMMs, or add AGI to engage difficult targets, or even get into an AGI arms race trying to be agile enough to not get hit, while they try to be agile enough to hit — that extra agility eats into your fuel and/or warhead space.
Of course, that would muddy the waters a bit with respect to still needing an excel sheet to figure out optimal engine and agi combinations still, since both would still impact the outcome for intercepts.