Matching Dutch and British amphibious ship requirements

What would an ATS design need to satisfy both Dutch and British requirements in a joint programme?

A joint design would need more size, stronger command facilities and better self-defence, with capacity matched to the intended amphibious or raiding role.

A common design is expected to need more volume than the proposal under consideration. Describing it as a stripped-down Bay class raises concerns about using it as the principal deployment asset. Dr. Clarke recalls seeing a raiding-frigate concept with Dan at a naval conference and favours its own combat systems for smaller operations. A ship intended for larger amphibious operations instead needs sufficient room for troops, equipment and supplies. An intermediate design risks insufficient self-defence for independent raiding and insufficient lift for a larger landing.