I'm NOT the creator of the original mod, I just made an advancement guide so you can progress easily.
This advancement pack adds a hunting guide so you know everything about every single creeper habiting in the Creeper Overhaul Mod.
Master Hunter: Kill all types of creepers
Creeper Hunt!: Start the hunt with the classic creeper
Alive Wood: Kill every type of wood creeper (Spruce Creeper, Dark Oak Creeper and Savannah Creeper)
Vine-swinging Creepers: Hunt down all creepers that you can find in the jungles (Jungle Creeper and Bamboo Creeper)
Sandy Situation: Kill every creeper made out of sand (Beach Creeper, Desert Creeper and Badlands Creeper)
Explosive Mystery: Kill the almighty creepers, if you can find 'em (Swamp Creeper, Mushroom Creeper)
Windswept Heights: Kill the creepers that love living in the highest peaks (Mountain Creeper, Snowy Creeper)
Risky Depths: Hunt down all the creepers under the ground (Cave Creeper, Dripstone Creeper)
Not a Good Idea: Get blown up by any explosion
(Also there is an advancement for every type of creeper)