Yes, and unless the other team is distracted by something else, we get spotted and destroyed quickly due to a shitty "cloak" and little to no armor for defense
The cloak makes it difficult to see you at more than 10m, and the SMG is more than good enough for 1v1 combat. The idea with an infiltrator is specifically to sneak behind enemy lines while they are distracted. You're not supposed to draw alot of attention to yourself.