Remember the days of double shot hellcannon,where an artillery piece required skill,nobody complained about and enjoyed it except some Sp players(even though chaos invasion was always a joke).
And then came Tomb kings patch note where they nerfed the hell out of this unit for no reason<Dmg,AOE DMG,AOE radius and Ammo nerf,for just a tiny bit more faster reload and accuracy and the removal of double shot.
Then it turned out the accuracy was worse then before then they fixed it and but 2 patches down in khardysupdate They nerfed accuracy...??
Meanwhile Other factions artillery kept getting buffed (Even Still you dont see them)and this unit got left out.
But you will say we do see hellcannon time to time,well yeah because dont have much option and have to compromise,and you never see them pay back their values.
PlagueClaw catapult and now even Casket of souls way out dps Hellcannon(even though chaos dwarf are supposed to have the best artillery).
Check this out:-https://twwstats.com/unitscards?units=f=0&k=wh_pro04_chs_art_hellcannon_ror_0&m&r=0&v=4773075569211187819&units=f=0&k=wh_main_chs_art_hellcannon&m&r=0&v=4773075569211187819&units=f=0&k=wh2_main_skv_art_plagueclaw_catapult&m&r=0&v=4773075569211187819&units=f=0&k=wh2_main_skv_art_warp_lightning_cannon&m&r=0&v=4773075569211187819&units=f=0&k=wh2_dlc09_tmb_art_casket_of_souls_0&m&r=0&v=4773075569211187819&units=f=0&k=wh2_dlc09_tmb_art_screaming_skull_catapult_0&m&r=0&v=4773075569211187819
The Most important stat on artillery(Unless geared towards large units like warp lightning and cannons)AOE damage radius and AOE damage.
If you compare that hellcannon is really pathetic compared to them both casket and plagueclaw have almost same stats but Hellcannon only gets one shot meanwhile plagueclaw gets 3 shots and casket has 7 projectiles.
Even if account for reload time reduction both still way outdps hellcannon,initial project damage isn't that relevant.
And from accuracy testing hellcannon is only slightly more accurate compared to them not by much.
and all of them are way more risk compared to cannons and trebuchet and bolt thrower not only they can kill them easily and are cheaper and can do just as much as work killing more valuable large targets.
Solution:- Just revert its damage nerf(Double shot fix was more than enough)
Increase Detonation Radius/AOE from 7 to 9 which was it was originally .
AOE AP Damage from 90 to 120(original value).
AOE base damage from 30 to 40.
Keep the ammo nerf and double shot/accuracy nerf where it is now.
Optional :- 100 Cost