Information protection
What the adjutant meant was that if they were to report this intel in P5092's name, P5092 would have to bear all the responsibility should anything go wrong.
In other words, if Ren Xiaosu were just guessing where the emplacements were located, P5092 would have to take all the blame for it.
Honestly, very few high-ranking officers were willing to take such a risk. That was because committing a mistake as serious as this in the war would likely affect their career in the Pyro Company.
But there was nothing he could do about it. The adjutant realized his superior trusted that kid's word a great deal for some reason.
As his adjutant, what could he do? He could only summarize the intel in a document as per his superior's instructions. Furthermore, he had to fabricate some details and events so that HQ would believe the authenticity of it.