So, for all the hard of comprehension;
Optimum = "most conducive to a favourable outcome."
laydown = "second single from Melanie Safka's 1970 album Candles in the wind." OR "Laydown delivery is a method of attack utilising a free fall nuclear weapon" OR just maybe it is slang for MoD occupied land.
Required = "Officially, compulsory or otherwise considered essential."
To = "Expressing motion in the direction of a particular direction."
Support = "bear all or part of the weight of."
Operational = "In or ready for use."
Capability = "the power or capability to do something."
Hope that helps.
I do wonder how some of you cope in 2019.