Customizable Post-Chaos DPS Chart

I've observed tank attack delay at 480ms and siege attack delay at 270ms. Are you sure your numbers are accurate?

Well I did several audio graph analyses, and all I know is that Siege mode -always- shoots 20 x 6 shots (in the fixed 5 seconds Siege mode, which is hardcoded).

Then I stumbled on Mech's 1st job flame launcher who was 270ms (see Fiel's skill data). If you use 270ms base + booster, you get to 240ms, which happens to be 20shots in 5 seconds. And since Nexon is the master of Copy+Pasting, I assume they also used the 270ms base here (240ms with booster) for Siege Mode.

All you need to know is that Siege Mode is -always- 20 shots in the fixed 5 second Siege mode. I ran like 20 graph counts, it's always 20 bumps in the graph.

Same goes for Tank Cannon, graph analysis shows it's that fire rate when you count the bumps on the graph (I ran multiple tests of 60secs), which also happens to be exactly 2x slower as Siege mode, so it fits perfectly.

There is no hard coded evidence since those delays are not stored in the data, but this is the best I can offer you.