Tactics and principles of assaulting a heavily defended enemy coastline had been proposed, discussed and refined at the month-long conference in London during May 1943.  This was translated into separate lesson plans for each element of the Infantry Assault Team. 

Some individual lessons were modified with experience but all maintained their adherence to the basic principle of "engineer-like" infantry dealing with enemy defences.

Infantry units adapted to their new role of acquiring engineer skills as well as working as self contained "Assault Sections".

Engineer Combat Battalions learned, trained and practised their D-Day mission of clearing gaps in obstacles on the beach for the Assault Sections to land, pass through these gaps and attack enemy fortifications. 

The Assault Training Centre experimented with replicas of obstacles known to be on the enemy held shore to determine the quantity and position of explosive charges required to destroy or collapse them and produced a definitive chart of their conclusions.

Once these gaps were blown the 30-man Assault Sections would pass through them to carry out their mission of neutralising enemy fortifications. To do so the Assault Training Centre equipped them with a variety of weapons. 

Rifles and machine guns to provide protective fire covering the Section’s advance with small calibre mortars for heavier support. Bangalore torpedoes to blow gaps in defensive barbed wire and flamethrowers to force defenders to close-up pillbox openings allowing the demolition team to rush forward, placing satchel and pole charges at vulnerable points. 

Bazookas were also used as a novel method of quickly neutralising a pillbox if an accurate shot could be fired into an opening.