@Samegerilja you have to activate them. Listen when your being attacked by the infected you see a window then there are 2 options, one is "Wait I need more time" and one is "Bring it on!" so above them you can see some letters written like "arm all traps against infected" see a bit left then you see a box when you click it it arms your traps against the infected. AND YEAH ONE MORE THING... LAG! or unresponsive characters when i clicked my medic he started moonwalking towards a wall and then when i was attacked by the infected, my leader just started running bananas when i clicked him to go somewhere else and then HE WAS INACIPATED!!! (or whatever :p).
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