The way you were describing the way the thrusters would be used made me think of a "high mobility" set up or something.
IE quick movements left/right, toward or away from a target, without really "taking flight"
Same Idea I have boiling for my heavy character(be nice to dodge the occasional blaster bolt or rocket).
When I read "Intergrated Thrusters" first thing that came to mind for me were Mobile Suits(AKA Gundam's).
And when I saw how you thought of those toilet brush holders as thruster ports it really made me think.
In the short screen time the Kampfer spent most of its combat time on the ground using multible thrusters on its back, legs, torso and arms to move around the battle field very rapidly.
While the whole time never really "flying/jumping".
Here is another Gundam with intergrated thrusters in the back(including weapons powered by the backpack).
And this is closer to the idea of my mobility pack, a Space Leo(which is the same as a ground based version just with different colors and the mobility pack).
Now I know these are giant robots, but the ideas are there.
Not sure if my "High Mobility" pack will pass inspection later down the road or not, but maybe those pictures could lend you some ideas on how to incorporate some thrusters into your calves, boots, shoulders, etc
Something along this line could spread into a "paratrooper/shock trooper" of some type, where as instead of using a parachute they would have thrusters on their armor to slow and ultimately stop there drop into hostile territory and then use their quick speed and mobility to break through the enemy lines.
