Damage - 5/10/10
These are very small and weak enemies but can be very annoying, they are usally found in dark places such as vents. Use Crowbar or Pistol to take these guys.
Damage one slash - 10/20/20
Damage two slash - 25/40/40
the second stage of alien, These are rather slow melee attacker but if they get close can badly wound you.Use hit and run on Crowbar, Pistol,Assault Rifle, or Shotgun.
Damage - 10/15/15
The first ranged enemy in the game they cant do much damage you cause they have to charge up first and you have lots of time to kill them. 3-5 shot from a pistol will finish them.
Damage Claw - 8/10/10
Damage Clawrake - 25
Damage zap - 10/10/15
This guy you'll see the most of thoughout the game. they can be a threat at close and long ranges, they usally dont miss on thier zap unless you jump behind something. they are also quite fast attackers.Use the Magnum,Pistol(Early Game Only),Shotgun,Assault Rifle, or Crossbow for these
Damage -??
These are stationary enemies but can be dangerous early in the game cause once you hit there tongue, that some mistake for a rope the first time, you cant get off and early you dont have many weapons to take them.Later in the game you can take them in 1 hit if you have to. I like to stand back and pistol them with about 4 shots to kill them.
Damage Bite - 15/25/25
Damage whip - 25/35/35
Damage spit - 10/10/15
These are the most annoying enemy next to the tenacle, there whip and bite can send you flying across, but they're not very accurate with there spit attack which is slow and give you plenty of time to move. Use the Magnum,Shotgun, or Crossbow on them.
Damage Kick - 5/10/10
Damage Shot - 3/5/6
Speed - 400/600/800
These Guys always travel in squads and in these squads have got to be the most dangerous in the game, if they get you cornerd they will toss tons of nades at you till your dead, and these guys can throw. they carry Shotguns, or Assault rifles. I use Assault Rifle Nades, Shotgun, or Magnum on them.
This Aircraft is the bringer of the soldiers, it has no attack so other then droping in 4 soldiers at a time it cant hurt you, use rocket launcher to stop it or for the early game just focus on soldiers and run for it.
Damage - ??(Can usally kill you in 1 hit)
You only meet these twice in the game(once if you play it right), but they can stall you for a very long time, they dont move and cant see anything, but they can hear your footsteps, if you attack them enough they will go into the ground for a couple of seconds, but then come back. if you crouch they will not hear you and will ignore you. Grenades make a great distraction, and one double blast from a shotgun will send them into hiding.
The only way to kill these is to test fire the silo rocket(you must turn 3 things on first)
Damage Slash - 10/30/30
Damage Fire - 3/5/5(Attack VERY fast)
Damage Stomp - 50/100/100
This was a hard enemy to defeat cause when you first see him you dont have many explosive weapons, you just have to run away from him everytime, to kill him you gotta get the power on then lure him into an area, then turn on the generator and he will go down.
Damage Punch - 10/20/20
Damage Hornet - 4/5/8
These guys are the Squad leader of the alien forces, you usally only see 1 or 2 at a time, but they come with a bunch of Alien Slaves They use the Hivehand attack for range or can punch you, They can take alot of punishment, Use the magnum, Assault Rifle Nades, Shotgun, Tau Cannon, ot Glueon gun to defeat them.
Damage Zap - 15/25/35
Damage Speed Ball - 650/800/1000*
Damage Ball - 3/4/5
They're the flying force for the aliens, they are very annoying cause they're small and fast can make them hard to hit. They can fall from 1 hit from a magnum, I also like to use the Tau cannon, and sometimes the rocket launcher on them, If I'm out of ammo for those i use the Assault Rifle.
*I dont believe I've ever seen them use the Speed Ball attack but the file im useing to build this guide says they have that attack
Damage - 8/10/10*
These are the Hardest enemy to hit in Half-Life, They're only found once in the game and in a dark area, they wear a black leather suit, can jump very high, and are very fast runners. I like to use the Magnum or Shotgun on them to take them in one hit(I perfer the Magnum)
*Not eniterly sure if thats the exact damage but im pretty sure it is.
Damage - ??
You dont see a lot of these helicoptors in the game but when you do look out, they can kill you very fast and can take quite a bit of damage. Use the Rocket Laucher, or Tau Cannon on them.
Damage Slash - 50/60/70
Damage Blast - 100/120/160
Blast Raduis - 250/250/275
This is a minor boss leading up to the final boss of the game, but he ill still hard, you have to aim for the sack underneath. Look out for the baby headcrabs it spawns. I use whatever I have on this starting with the most power gun
Damage Shake - 20/35/50*
This is the only threat in water in Half-Life for aliens. They are very fast and powerful, if it's possible avoid fighting these, if you have to try to stand back in a protected area, or out of the water if you can(Use Crossbow or Assault Rifle Grenades)
*I Think the Icthyosaur has a second attack that is bite and is more powerful but the file I use doesn't say that
Damage - 2/2/2
This is another water alien but dies in one hit from anything and it's only real stong point is it's size, it's the smallest thing in Half-Life and you may not even notice them, just plow through with a crowbar or snipe them with your pistol.
Damage - ??(Can kill you very fast)
There ae 2 types of turrets, one on a tripod on the ground, and the other hanging from the roof, they both have the same health though. These are very easy to take, Use explosives and the tripod ones fall fast, Use Shotgun or Magum on the hanging ones.
Damage Zap - 30/30/50*
The final boss of Half-Life, I Found this guy easier than Gonarch cause it gives you plenty of hiding places, which are the pillars, You dont fight anything else after him so use whatever you want.
NOTE: there are 2 ways to kill him, you can take out 3 crystalls and then fire till his head opens, then get on top of his head and beat it to death or just unload on him and he will eventually die
