"On-map" or "off" ?

[RedDevil]

I prefer on board mortars of 76mm or larger myself just for those reasons ratzki mentions. Quick to drop, more accurate and mobile. Even when defending, they can use the TRPs just as well as Off boards.

I'm also a BIG fan of mortar carriers, keep them near a COY commander and they come with a lot of ammo and smoke rounds :) and they move quicker!

The little mortars are an asset as well if used properly to cover an attack or suppress a MG making advances difficult