at the moment carrying barrels during gate events in chaos wastes as a priest is almost impossible when the above mentioned curse is active
as soon as you pick up the barrel and implacable activates from curse you ignite the barrel, the only way to complete it solo(or if teammates refuse to help) is to rely on shield of faith and pray to sigmar you toss the barrel far enough before shield damage reaches it.
Baleful empathy curse also affects other teammates from implacable, teammates getting damaged also means you proc the implacable again, it’s an endless loop.