Talk:Twin Vipers/@comment-87.196.109.8-20130720221710

eh I don't understand... Firstly I bought a Viper and lvled it to 30, then I built another viper, and then I bought the BP for Twin Vipers.... Now the problem is that I can't build the twin vipers because the foundry only accepts the one that is IN the foundry (still not reinvindicated)... what's the problem here?