Well, depending on what you guys think the dice system will work either as

a) certain tasks have a certain rating to them. For instance, beating down a street thug would require you to roll a 25 or higher on a 1-100 scale. The harder the task, the higher the number for success is. Depending on how high you roll above or below the target number, the better success or worse failure you make. Rolling a 90 on a 50 roll to mow down an enemy with your heavy machine gun would likely result in you hitting one or two of his allies and killing them in the process. Rolling a 10 would likely mean your gun jams and you're forced to take cover to fix it.

b) no matter the task, I always roll a 100. The close to 100 you get, the better you do. The closer to 1, the worse you do. Gives a bit more wiggle room than the other system.

Regardless the system, your traits and cybernetics will always give you a bonus to your roll. Say you run into a guard while sneaking through a lab and he goes to pull his gun on you. You need a 50 to pull yours and shoot first. You roll a 48. But, you have a handgun trait which adds +5 to any rolls you make with a handgun. Your roll is boosted to a 53 and you manage to pull out your gun and shoot him in the arm.

Sound good?