Suicide

[Avor]

To commit suicide, to purposely end your life, is mortal sin, a one way trip to hell. But Jumping on gernade, to save your brothers, is in a way suicide.

Not only to give life for what’s good and right, but soul as well. Such is that way of the Warrior.

 

[asquared]

that is not the interpretation Christ would give: greater love than this has no man, than that he lay down his life for his friend.

 

[mosher]

To commit suicide, to purposely end your life, is mortal sin, a one way trip to hell. But Jumping on gernade, to save your brothers, is in a way suicide.

Not only to give life for what’s good and right, but soul as well. Such is that way of the Warrior.

You are poorly defining suicide. Rather, suicide as such is the act of taking ones own life as a result of the sin of despair. This is the one way ticket to hell (as you put it). This is a selfish act.

The second scenario that you describe does not fit the moral definition of suicide but is rather a giving of ones life for the sake of the other. This is an act of love and heroic virtue.

 

[Wendy-Kay]

To commit suicide, to purposely end your life, is mortal sin, a one way trip to hell. But Jumping on gernade, to save your brothers, is in a way suicide.
QUOTE]

Thus, by your definition, there will be several “saints” in Hell. Any mother that knew she would lose her life to save that of her unborn child would be included, or anyone that surrendered thier life to care for those with highly contagious illnesses.
Fortunately, we do not have to come up with our own definitions. That is what is so wonderful about the RCC. She is guided by the Holy Spirit and the magisterium guides the flock well.
This article from New Advent defines the culpability and seriousness of the differing types of suicide.
newadvent.org/cathen/14326b.htm