Two nitpicks (Honest i'm not trolling)
1, I said single hit
2, The Multi-laser being without the Accurate quaility and requiring a full action to use (Thus no aiming, in the same time frame as the Snipers Shot) will achieve the same number of degrees of success as the sniper. thus will get 3 hits with the Mutli-laser on the same roll, (which granted is still more damage just not the 5 times damage your saying.)
In regards to the Dodging of the attack, you have to be aware of the attack, you will not be aware of any Sniper worthy of the name.