No, he is correct. What he proposes is to clip 2 engines stretched by a factor 0.75 (ok, shrinked in fact
). Thrust would be multiplied by 0.75, so 2 of them would make 1.5 times the original thrust, so exactly 22.5 tons.
He
has the right to ask. Freedom of speech. I support the suggestion that he could learn modding but if you don't help him please at least don't deny him the right to ask.