If you haven't picked up the Orbital Precision Strike since you were a noob, it might be worth giving it another shot. It could already one-shot Bile Titans and tanks, but was hard to use due to the long call-in time. But with that time being reduced to 2 seconds and the cooldown being buffed to 90 seconds (as opposed to 210 for the Railcannon) it should be much more usable now.
If you like how the OPS does against tanks you should try the new 110s. The old 110 could 1-shot tanks very consistently. I can't wait to see how it performs now.
Worse damage but way better accuracy. In the past they only hit a few rockets or missed entirely and I just stopped bringing it. Now it's deadly accurate, but it's offset by the damage reduction. It won't 1 shot a hulk and probably not a tank, but it'll get them hurt real bad.