Then we need to nuke all of it to win.If they get smart and disperse/we could not take even one with tanks/,then it mean at least 100 nukes.
And since their tanks probably survive tactical nuke,it could need more.
Soldiers would do nothing,but tanks? it depend how many 120mm schell we need to kill one Custode.And if it is doable at all.
If not,we must use H bombs.
If we use H bomb,none of ours.With tanks and air forces...could 120mm schells and guided bombs kill them ? if so,they would die quickly. If not,we lost 2 corps.