I've recently unlocked the soda popper for the scout class. I love the weapon and use it as my go-to scattergun. In the weapon description it mentions that when hype has been built up, pressing alt+fire will activate a special ability. However, when I press alt+fire with a full hype bar, the weapon fires and nothing else happens. If I right click, the weapon glows purple with no other effect (except I think it might be giving me critical hits from behind; I'm not sure though). Why is nothing happening when I press alt+fire and what is happening when I right click?