How do real life armies clear cities?

[Zipuli]

Big armies most likely first isolate the area with fast mech forces (enemy cannot retreat/receive support) and then bring in the troops that will take the urban area. Block by block/house by house movement supported by tanks/IFVs and lots of smoke and artillery fired at the defenders. Smaller and more heavily (than normally) armed inf teams then rush the houses and clear them using lots of explosives etc. For support fuel-air-explosives are excellent (Chechnya) and russians have a long tradition in using SPA for fire-support in built up areas to destroy houses. Little by little advance, if the enemy is dug-in well, then more arty, smoke, tank gun fire and so on. The key seems to be to have SUPERIOR firepower against small, isolated enemy positions then sweep/infiltrate using any route possible.

Movement is really slow, but if you rush, then casualties are generally really high (Groznyi 95!)...

Zip