How do you merge more then one vs on lost planet two

get to chapter 4 then play through in till you reach the part where your moving up the beach (easy recomended and local or online two players) once you take the base
get two of the vs that has invisability you need two for justin case one is destroyed make it two the second misson with the vses defeat the first
guardian akrid then pass the shield wall and dont go on two the nextwall
defeat all of the enimes then near the next wall is a secret cave kill all enimes there will be a tank like vs at the end of the cave have one person hop in then position the vs with wings behind it then goto the vs manul select the vs your in
then goto special functions and at the same time press the both analog sticks down like buttons and one left one right if done right one vs will start to hover
when it says press b for moves search how doo you merge on lost planet 2