Diablo48.... it's simple.
People ignore Stingers.......
Even the Stinger with the Rockets.
I've fielded Stingers, and even managed to just walk around to the back of my opponent, and he ignored it...... (I ran, but the terrain was crap, so, at best, I managed 4 hexes a round of actual movement)........
I am not sure why, but people see Stinger, and promptly decide it's a 20 ton waste.... they compare it to other designs, or cite how poor it is, and then promptly decide it's not worth chasing around.... so I hold them back, and then unleash them at the right time...... and no, I am not disparaging you. Nearly every player I have faced has laughed, and pointed out the Wolfhound, or some other mech, and then question me as to why I "wasted" a unit with the Stinger.
Usually, somewhere during that battle, I also get an "oh crap, I forgot that it was there" moment to savor......
Then, there is always the 3P... complete with a Light PPC.....
The thing with the Stinger is that once you spring it, people will probably hurt it, or kill it quick.. . but if you play it right, don't attract a lot of attention, and never leave it as the only target (unless that's part of the plan), you can pretty much run it around with impunity...... people just don't tend to pay attention to them.
Nahuris