Zing Freelancer wrote...
I tried, I failed. Just what is clasified as a "wall"?
First off, the javelin doesn't blanketly shoot through anything. It was a penetration rating assigned to it (that is significantly higher than the widow/black widow) and can penetrate objects up to a certain depth. You can attach the penetration sniper rifle mod to it to gain even more depth, but you also add a damage debuff to any shots you make that penetrate cover that would otherwise not be debuffed without the mod.
Experiment the next time you're in a game, find a console or a surface with variable depth and shoot it with the javelin and check the floor/wall on the other side to see if the shot left a mark where it hit. If there is no mark then the object was too thick, try it on something thinner. If there is a mark, try it on something thicker.
Use basic investigational skills and learn the limitations and advantages of your weapon before complaining about... or if you don't want to do that, type your question into google.