We have little need for military forces, a pair of hibernating predators should suffice for any situation that we could reasonably afford to engage in
I am sure that mining soldiers can mine quite well and quite well suited for that in civil life , besides we need versatility in armed forces
We require a male with some urgency, and currently our challenges are more civil than military.
1) No real urgency, five days left, we will get one more royal jelly unit until then
2) We need to be ready for war. As for civil challenges, our main challenge is abundant food and there are better ways to solve that than mating with T-drone
3) Navigation drone makes a bad mate... We'll get a caste that is best at interstellar navigation... Not that useful in our current situation. While LVL-3 soldier like I propose will create an intelligent mate and strong mate . Also I dislike the motion to pure tech, build industry base solution, we are playing a
body queen here... My personal vision of best strategy - creating adaptable nomadic predatory hives ala Alien. Offspring of mining queen and soldier like I propose will be adapted for that quite well, offspring of Nav drone goes against that concept and will tie us to the techs
We should preserve our pollen supplies for extraplanetary operations. We will likely require a large quantity of primitive extraplanetary devices when we become dominant.
When we will be dominant enough, we'll have enough flowers and refineries to produce as much pollen fuel as we want
Some more mate ideas: ( I prefer LVL3 soldier, but stuff bellow IMO is way better than using interstellar navigator. All ideas assume upgrade now, make fertile later.)
1) Level up one mining drone: Create high speed mining, adapted to dig very-very deep, blind sub-caste
That will allow us to create subhives that will provide us with resources and be virtually indestructible (unless together with planet)
2) Level up a pollinator, boost it's intelligence, make it more familiar with farming technologies
That will allow us to create an agriculture caste
3) Level up a scout, make it smaller, way better at camouflage and add natural weapon or two
Subcaste off small stealthy Kai, have quite a lot of nice military uses
4) Level up a Nurse, to make her fertile as female (and hermaphrodite later) modifying her in a way that she can produce more eggs, even if of lower quality
That will allow us to create a fast breeding caste
But you just want a boring research boosting drone, that not even optimal for that