She shoots you, you take damage and then another point of damage when you fail a Tough check to remove the Poison token. Then you are out of range for charge. Even if you do, you have to double move to get her which means you can't attack. She activates, needs a 3 or better to break b2b steps back and finishes you off, and then her friends swarm the rest of yours and she runs around to stab you in the backside.
Alternatively, she stands on a hill to gain and extra inch of range for every level of elevation. Meanwhile, you effectively lose an inch of movement because you have to spend an extra inch to go up the hill. Heck, if she already needs a 10 to hit you, she might as well roll twice with Marksmen and remove 2 points of damage to 2 targets if she gets lucky since sadly Poison tokens don't stack.
Rogues are not meant to be stand out in the open and trade shot type Models. You hang em back where it's safe. And spend the 30 points for the +2 DV upgrade on her. Also, yeah, she's dead against most Adepts and leaders. You use Rogues to kill off the Mages, Clerics, and other soft and chewy targets from a distance, or you bring her in to finish off some of the bigger boys once they are wounded and force them to eat the Deefnsive Strikes.
isn't it when you base a person on two opposite sides they can not break away??? so by simply having two grunts base her on opposite sides she would not be able to break on a 3 or better