Rogue Trader can be pretty vague about what the actual differences are between greater and lesser warrants of trade.
There are militant warrants that give easier access to requisition military hardware, but that come across as more of a type of warrant rather than a strength.
Older warrants are supposed to be better, but the fine print about *how* isn't made very clear.
Is the strength of a warrant solely down to age, wealth, and reputation?
Or is there something I'm missing?