Tau V Imperial Guard 1850 loss

My opponent deployed first but I ceased and thought I would be able to do huge damage but his aegis defence line kept giving him huge saves and undoubtedly saved a number of his tanks on numerous occasions. My piranhas went up the flank and very quickly killed a tank. He returned fire with beast hunter shells that killed a riptide. Shadowsun with the 2 twin linked fusion blaster and plasma crisis suits arrived behind his tanks and started popping vehicles but it was too little too late. Didn't learn whole lot from this game, my opponent has been playing for over 10 years versus my 6 months and did everything right he was impressed and surprised at my tactics with the piranhas and shadowsun.