Well, even having 4 snipers with Heras and spare ammo in a great firing position it took ages…
You have actually panicked it with a MG Biochemist long before it was paralyzed. I would hardly call it an effective way to deal with Scylla =)
And having all haven defenders and all civilians killed or mind-controlled… Do you hold some sort of personal grudge against Synedrion?
I always try to save as many people as I can in haven defense missions seeing it as a part of my job. Of course it becomes much harder to do with Scyllas present.
Well, in my last legendary campaign i killed 32 Scyllas and mostly of them i did not used virus damage… so just take risks and kill them with conventional gear and allowing Scylla to fight back.
Explosions first to destroy armour, after it massive gun fire in abdomen and head. If it came close enough use rage burst or a turret. If you kill lots of pandoras and have a priest in team you can also put Scylla in panic, with Pshicic scream you can remove will power also. With War Cry you limit Scyllas action points to half, so is plenty ways to deal with Scylla without virus damage that destroy one of the supposly feared enemys ingame.
I managed to capture a Scylla on a Synedrion haven defence with a team of 4 x Assault / Sniper with Hera pistols and 2 reloads each, 2 x Heavy / Sniper with Deceptor MG, 1 x Sniper / Infiltrator with Athena with 1 reload and a Raven with 1 reload, 1 x Sniper / Assault with Hawk.
The Scylla needed 390 paralysis as I hadn’t disabled the head which I think would lower the requirement.
2 heavies with Deceptor MG strip armour on the abdomen for biggest target and used war cry to reduce actions on Scylla for a turn or two. Avoid disabling legs as that induces too much bleed and will cause it to die before paralysis sets in.
Spider Drones were incredibly useful as a front-line so the Scylla & other enemies targeted them first, wasting their actions on destroying the drones as decoy. The triple deploy Spider Drones was incredibly useful.
I failed first Scylla on a previous mission as I only had 1 reload each for the Hera pistols and ended up with 328 / 330 paralysis.
Not sure how much virus was a factor because only one heavy had biochemist perk.