Aside from general introductory material, you need to delete material that is fully covered in the main cog article and focus on what makes these different from ordinary cogs
Forex, the lede needs to be heavily refocused as a summary of the main body with a lot less specific detail, but that can wait. There's a reason why I generally write the lede last.
I don't think that we really need to cover the construction except for whatever differences warships might have had from ordinary cogs
Are the larger cogs generally warships, or at least armed for self-protection? Or don't we know?
Are there any illustrations available for war cogs in profile specifically?
Give the general lack of technical info available specifically on cog warships, the real meat of this is obviously going to be on their use and you should probably have a 1 or 2-paragraph summary of their activities in each of the battles that you've listed here.
