If your enemy is your employer and their launchpad infrastructure—yes!
Less jokingly: liquid-fueled rockets aren't very practical weapons, especially ones with cryogenic fuels like liquid oxygen. I highly recommend Clark's Ignition! An Informal History of Liquid Rocket Propellants for a history of the space and missile races, as understood from the point-of-view of a propellant chemist who worked in them. There's an amazing amount of lost art and lore from the early Cold-war space era, that's no longer relevant in the modern world, except for its sheer entertainment value.
Came the day of the first trial. The propellants were hydrazine and WENA. We were all gathered around waiting for the balloon to go up, when Uncle Milty warned, "Hold it- the acid valve is leaking!"
"Go ahead - fire anyway!" Paul ordered.
I looked around and signaled to my own gang, and we started backing gently away, like so many cats with wet feet.
Howard Streim opened his mouth to protest, but as he said later, "I saw that dog-eating grin on Doc's face and shut it again," and somebody pushed the button. There was a little flicker of yellow flame, and then a brilliant blue-white flash and an ear-splitting crack. The lid to the chamber went through the ceiling (we found it in the attic some weeks later), the viewports vanished, and some forty pounds of high-grade optical glass was reduced to a fine powder before I could blink.
I clasped both hands over my mouth and staggered out of the lab, lo collapse on the lawn and laugh myself sick, and Paul stalked out in a huff.
When I tottered weakly back into the lab some hours later I found that my gang had sawed out, carried away, and carefully lost, some four feet from the middle of the table on which the gadget had rested, so that Paul's STIDA could never, never, never be reassembled, in our lab.
To be specific, the challenge with cryogenic fuels is that you can't really keep the rocket fueled up all the time, so you need to spend a bunch of time fueling up the rocket, reducing the responsiveness of the system.
There were generations of hypergolic liquid fueled ICBMs. Those are typically pretty reasonably responsive (and reliable). Unfortunately the fuel is toxic as hell.
Europe does have native solid booster capability. The Vega-C has solid rocket motors for the first 3 stages for example. Very crudely looking at sizes, the 2nd and 3rd stages of a Vega-C should more or less approximate a typical ICBM.
With Ariane 6, they switched to Italian soilds. This was basically France buying of Italy so they would side with them to build Ariane 6, rather then Ariane 5 ME that Germany wanted.
All rockets are "dual use" in theory. Lots of the technology, such as guidance and so on, is the same. But this rocket is about as far on the 'launch sats to orbit' side as you can build a rocket.
