Originally, according to Rost's idea, he naturally wanted to secure more "military merits," but due to the lack of "captured" East African soldiers, it was impossible to understand the structure of the East African army.
In this situation, how should the "Great Victory of Tugela River" be fabricated, after all, fabrication must be reasonable and justified.
Rost's approach was not uncommon in this era. Just like in the previous life during the British-Boer War, there was severe exaggeration of military achievements and losses, nearly exhausting the British treasury, similar to what the US military did in Afghanistan later on.
Of course, the fact that the Tugela River defense line was indeed breached cannot be changed, but if you want to "exaggerate" this victory a bit, you still need to obtain East African intelligence.
