Death company dread question

A Death Company dreadnought May be taken when you have 5 death company figure's Now I understand there is a unit called Death company, but Also Death company dreadnought, with rules allowing 6 troop choices 1 dread needing 5 others, or does this mean only Death company marines non dread? I know sounds like a loop hole but Its a serious question for a list I plan on using.

Death Co. Dread requires Death Company Infantry.

army builder just says death company

You need to think that through again.

If you can have 1 Death Company Dread for every 5 Death Company dreads you already have, then what would satisfy the requirement for the other 5 dreadnoughts?

Only an infinity of dreadnoughts makes that possible.

You can have five death company dreadnoughts max. That would be if you took one 25-man death company and five dreads to fill all six troop slots.