The Guild tend to favor direct tactics over subterfuge. They have a strong focus on ranged combat, with plenty of models who are capable of putting out good damage at long range. There is also a minor focus on scheme marker manipulation, particularly among the Guardsmen, who are trained to notice strange things while on patrol and react accordingly.
The Guild mostly deals in Living models, though they also have a number of Constructs capable of providing support for their Living allies. Their Enforcers and Henchmen are quite dangerous, but since just about everyone has a gun of some sort, even their Minions can prove dangerous to their enemies.