Wave 1
Dot one soldier up, painflare, ruin spam till next wave.
Wave 2
Dot the front most soldier up, contagion, pain flare, bane, DWT and ruin 3 spam the highest target of hp. If they are dying slow, death flare, if they are dying fast, quelling strikes and death flare the start of the next wave asap.
Wave 3
Dot up the Hardmind(or helm, can't remember which one it is) pain flare, bane when the other is brought to the group, painflare and DWT/Death flare if dps is needed, if not move onto DWT/DF next wave
Wave 4
Little iffy depending on how nice your other dps are about not burning the boom type, but dots, pain, bane, and pick off soldiers/snipers while letting gob rider feed.
Wave 5
If you have 3 stacks to DWT, do so, TD goblin soldier 1, painflare, contagion, bane when all widows/gobs in range and ruin 3 spam. If soldiers between the gobs it'll be easy for DF to hit all.
Wave 6
Depending on dps and if they need the help, Dot hardhelm, bane to boomtype and leave them alone the remaining amount of time, dot the Jag and bane onto the spider. DWT ruin 3 spam the Jag, DF jag to hit both it and spider.
Wave 7
Pray your tanks can hold hate if they are focusing on another target as number 1, if something is closer to bane the rest of the jags onto, do so and keep praying or you'll grab hate. Painflare/banes/deathflares etc till they move to next.
Wave 8
Pick your Dot victim for banes, do so right away and painflare, fester hard helm/minds if they need to be burned quickly depending on other dps. Do a little dance and use it as recovery time of stacks etc while the last jag or two is removed, and soldier/snipers.
Wave 9
Dot that boom type up as it'll be your bane buddy. Contagion, painflare, bane/LB as much as possible. Focus those soldiers down after boomtype is gone and once they are killed while stunned, burn that jag, take out the last widows and tab back to your parse to see how sexy you did.
If you die at some point, dont worry too much, shit sucks but you'll still do well. Garuda is a whore and she knows it so she'll try to stand in range of bomb explosions and jag aoe they throw out, be ready to sustain/resummon her.
Besides that enjoy your first few weeks of killing as they will be your highest, from then on everyone else will do better dps, killing your dots sooner, making your dps go down and cry silently in the corner :')
Oh and as kills get faster/smoother, you'll be either short on stacks you are expecting since less time etc, so try to adjust accordingly.