What is the Roman Catholic point of view regarding spies who commit suicide in order to avoid capture?

In May 1942, two Czech operatives (trained and armed by the British) assassinated Reinhard Heydrich , the Nazi governor of Bohemia and Moravia and a good candidate for the most evil man who ever lived. In the aftermath of said killing, the assassins were tracked down to an Eastern Orthodox cathedral with several other resistance fighters, where, following a lengthy shootout, they took their own lives in order to avoid capture. I imagine that sparing themselves the horrors that the Gestapo would certainly have inflicted on them was a factor in their suicides, but I imagine that **another factor was the desire to protect their families and comrades, whom they might well have put in mortal danger had they been taken alive**, by means of the information that would have been tortured out of them. I know that Christians generally take a firm stance against against suicide, and Roman Catholics are said to be particularly steadfast in that regard. **But is the case of spies avoiding capture, especially while fighting in a righteous cause, an exception in which suicide can be seen as self-sacrifice rather than self-murder?**