Depends what you mean with "Muslim terrorists". I support certain legit freedom fighter groups that might be labeled as "terrorists" that have legitimate goals like fighting for their homeland and way of life against the degenerate West like the Taliban.
I don't support groups like ISIS and their methods.
I also don't agree with their view on martyrdom and I think it's very different from the Catholic view of what a martyr is. Those Muslims who actively seek to become martyrs are just doing suicide in many cases IMO.
I understand dying for your cause if you need to blow yourself up to destroy some key strategic enemy facility or unit and you actually bring a crucial victory for your cause, but randomly picking a group of people and killing yourself just to be a "martyr" is not something I would accept as a Christian. This is basically just seeking death and looking for an easy way out of life.
In Christianity, you need to work hard to be the best you can possibly be in this life and if the martyrdom presents itself because of the enemies of Christianity giving you no other option, only then you take it. You don't actively look for the first opportunity to die. If this would get you to heaven, it would be so easy, you'd basically just need to blow up the first group of people you perceive as anti-Christian and you'd be eternally in paradise, so I don't really think it works this way.
For example Christians thrown to the lions are the legit martyrs, you can also make a case for Christian warriors (who actually tried to survive but couldn't) fighting and dying in battles. I wouldn't consider a Christian who would blow himself up just to kill some irrelevant non-Christians (no matter how much they hated Christianity) a martyr.
So therefore, the Muslim/jihadi concept of martyrdom is very strange to me.
