SMW2 goes C21?

I've been seriously thinking about bringing SMW into the 21st century. Guns, tanks, planes, mines, all that sort of thing. I reason thusly: Vehicles are much easier to build and manage than troop formations and there aren't many medieval vehicles to play with. I can get a wider range of structures to play with, like gun turrets, force walls &c. I also get a wider range of weapons... I'm very tempted!
What do you think? Guns and bombs or arrows and catapults?
Give an 'I like it' response if you like the idea of going modern (or leave a comment). I'm still on the path-finding code so I don't have to decide just yet.