I prefur small Pneumatic rockets that trigger ONLY at highway speeds... they don't set of Explosives detection sensors
Though.... technically... if a TX's mission needed him to use a rebel blaster... To reduce detection risks... he would. if he needed to use a bow caster he would... If he was caught by someone non special forces who criticized him for carrying Non imperial issue weapons... He'd simply accuse him of being a rebel spy and execute the pest on sight.
and still his weapon might be damaged and would have to take a weapon from a dead enemy... They're would be allot of dead rebels with guns and taking a rebels blaster... would be done to accomplish the mission...