ok guy's my army is as follows but i don't know anything about dark eldar so i've got no idea what to expect, all i have heard is that he has three tanks with shimmer shields and one squad of warriors, as i say i really don't know so any comments would be of good use

tactical squad w. lascannon - 180

heavy support
x5 devastators w. misslie launcher and plasma cannon - 115

x5 devstators w. missile launcher and heavy bolter

sanguinary priest - 50