Have a colleague who had khoriocarcinoma with lungs metastasis, the most aggressive, he had to go through 5 rounds of high dosage, including bleomycin (he had no choice), and after that he also had to go through RPLND.
Got his class 1 back, initially with OML etc, but now, after many years, he's unrestricted class 1
In my case, as I could choose, I did avoid bleo, but you see, even in case you have to do it, it doens't mean necessarily that it's disqualifying.