Gustave has taken it upon himself to observe Marion and Sanglain following the death of the Princess and DT.   But KT thinks Gustave is in the city of Marquesas for other reasons. 
If I go down now, one could say 
that I died honorably in battle.
Incluso si pierdo ahora, se podría 
decir que lo hice suficientemente bien
Aunque ahora me rinda, podría decirse que he cumplido lo suficiente
Mesmo se eu cair agora, pode-se dizer que eu fiz o
suficiente para ter uma morte honrosa na batalha.