I'm playing in a d20 modern game set in the fallout universe and my character died so I would like some ideas on on what to do for a creative new character.  my first character was a strong hero / soldier who used melee weapons.  my  second character was a strong / tough hero that used melee weapons. 

in our party we have a fast hero / gunslinger who does the stealing and long range / short range fighting.  we have a dedicated hero that is the healer.  we have a dedicated hero (i think) who is good with computer use, structural and mechanical repairs, makes his own weapons, and makes his own bullets from shells.   we also have a hero that is an investigator i think?  we also have a tank character that is a strong hero.

I'm thinking about doing a martial artists but i'm concerned about not doing very much damage, and not sure what path i would take to get to the martial artists advanced classed.

so based on what ive said, i'm looking for advice on a fun different character to play than what i've played before and one that will help the group.