A collection of posts by David Weber containing background information for his stories, collected and generously made available Joe Buckley.
Missile pods, when tractored inside the wedge to avoid accel penalties, are normally inside the sidewalls of the towing ships. The distance between the hulls of ships of BC and above is large enough to squeeze a pod into it, although their broadside armament would normally be blocked and nonfunctional (especially the energy weapons) while the pods were present. The same is true of the Peeps' Warlord-class CA [I think DW means the Mars-class -Ed.], but that's only because it's a Real Big CA.