1. Have dante amd vergil be sent to the overwatch universe after the events of dmc5 after some random portal or dimensional travel error shenigans stranding them where they would be forced to work with overwatch facing demons and talon and the like following some canonical events with slight divergence with the inclusion of mundus while trying to get back home.
(Best place to drop them during the events before overwatch got reformed where they could get recruited by overwatch or just be subtle allies runninf their own business and such)
I.e dont bring nero in as it would be unrealistic to try get both dante and vergil out when they are quite comfortable to do it themselves and be able to leave eventually
As for pairings this is optional although i dont recommended it for either(exemption with vergil and brigette i guess or DVA with vergil, or dante and ashe i guess but this is optional)
For powerscaling balances just make them take nothing serious and underestimate everyone and not do every fight in ow canon or just only reservebthem helping Overwatch fight demons while ow do their thing considering dante and vergil are eons beyond them in power and abilities
Make sure nto include some familiar faces from dmc such as mundus or argosax for thr twins and thereforth
If this gets enough support i might write a story or at least a brief teaser with this idea in hand
Thats about it
