Why can't alien races just take over Mars instead of trying to fight our military then failing hilariously?

@Elegy Don't get me started on those guys who were allergic to FUCKING WATER!!!

@Fangirlsarah1996 IKR?!?!

@Elegy Then the guys who didn't take the necessary precautions when dealing with alien bacteria...and then dying because of their stupidity.

@Fangirlsarah1996 don't forget underestimating cute or small creatures.

@Elegy Exactly...fukkin aliens don't know how to invade for shit.

Remember when they invaded LA?

They only brought air support and like...nothing else?

I remember when they attacked with poor AI. Difficulty was only measured in armor and life points... I mean that's just lazy programming.