I might be a bit full of myself here, but I feel as if this is possibly the most competitive railer or at least very close to it at the 2400+ mmr range.
It utilises composite Tx and Health Cube armour, giving it advanced protection against penetration. Much Tx is used in the core to give it a strong base in which to hover from.
4 tempests are spaced evenly around the build, 2 at the front, 2 at the back, allowing it to hover away with ease compared to pure escape pods. Increases survivability by so, so much.
7 rails allows high redundancy while being compact, although I must say the back 3 rails pop off a little quickly but that is unavoidable.
Over 1.5 million HP in an uber compact body.
1120 CPU is a sweetspot, tanky while still being able to fire to full effect with lots of energy.
That's pretty much it, if you give it a run (literally) you'll see it is as competitive as rail sprinters can get in this meta.
N.B Upcoming Tx buffs will of course buff this bot.