And if you have a reasonable weapon you should have no issues killing turrets and Saboteurs
Except sabs beam out while newb is trying to pop a silly turret that respawns 10 to 20 seconds after newb kills it.
Sorry if you think shooting turrets is fun and what you should be dong during stage 1, but it isn't. The only thing that counts towards the fleet mark math is the saboteurs. Spend time doing anything else but shooting a sab and you are just dragging down your team and your own mark count.