For accusation I might rely a bit more on thaĺlarians. Maybe with a handler for burning and the extra push. Or a thallarian. The crew is
Witchling handler ss8
Witchling stalker ss5(frame for murder)
Thallarian queller ss6
Monster hunter ss6
Sonnia(the mask, cherufe's imprint, counterspell area) ss3 or resurrection sonnia if there are many small model to kill ss3
Papa loco ss7
Francisco (wade in, hermano de armas) ss10
Brutal effigy ss4
Cache 4stones
for claim jump
A watcher seems a must. It can drop a marker and expose models who interfere.
I would say
Sonnia(the mask, counterspell aura(it depends), cherufe's imprint, reincarnation(it depends) ss3
Francisco(wade in, hermano de armas) ss10
Papa loco (ss7)
Watcher ss4
Brutal effigy ss4
Malifaux chil
Thallarian or monster hunter or austringer ss6
A choice among field reporters and investigators. I like investigators for summoning sonnia and reporters to counter opponent schemes