how did the egg get on the Sulaco

lol...this topic has been done to death I know, but here is my explanation, and I think the only one which makes closest sense... firstly had David Fincher simply excluded the egg and just had the facehugger the whole series would have been more canon but basically, the egg IS in the landing gear, it's inside looking out...The EEV does have the Sulaco branding on it too The egg was laid by the queen Alien..basically there always is an emergency egg lodged close to the sphincter, separate from the egg sack and it contains a super face hugger The super face hugger can impregnate multiple hosts, and choose when to lay the queen egg there you go, problem solved