If there was ever an alien inasion of the earth, I would have several plans to survive it, depending on the type of invasion.

Air raid: if the aliens decided to use their technology by sending in warships i would simply get supplies, camping equipment, food, and weapons and head for the mountains

ground invasion: if they attacked by sending in alien soldiers, i would get together my weapons and some ammo, and i will go out and fight them in the streets. When things get to hot, ill get my gear together, find my friends, and we would fight our way to the mountains. we would also take weapons off of any aliens we kill and use them against the invaders.

weapons:

-22 rifle

-22 pistol

-45 automatic pistol

-AK-47

-2 machettes

-molotov cocktails filled with napalm (because i know how to make napalm)

-2 tae kwon do short sticks

-shotgun

-bow and arrows (including exploding/flaming arrows because they are so easy to make)

-combat/survival knife

Supplies/equipment

-2 months worth of food

-water purifier

-space blankets

-camo tents

-seeds for extra food when we go into hiding

-field stove

-several first aid kits

-essential survival equipment

-backpacks and bags

-wind-up radio

-my truck

Clothing/armor

-black hoodie

-black cargo pants

-tacticle combat vest (black)

-body armor (i would probably have to find body armor) spray painted black to maintain low visibility

-black fingerless gloves (to keep my hands warm while maintaining my grip on my gun)

-black beanie hat (to keep low visibility)

General strategy

I would most likey remain in hiding in the woods only fighting when attacked until the invasion is over either by the aliens being defeated or by humans surrendering. if humans end up surrendering to the aliens I would probably form a resistance/freedom fighter unit to make guerilla warfare hits on the aliens for as long as the unit survives or for as long as the aliens remain on earth before leaving after realizing humans are terrible slaves. If that happens (assuming the aliens are hostile of course) I would probably do my part in rebuilding society as a volunteer worker or volunteer soldier.