Played through HR1 and 2 again...

Only on HMP since UV gets just abit too tedious for me. Hell Revealed 1/2 makes me realize there are only about 4 truly annoying enemies.e

1. Revenants: There is so many of them in alot of mods and a bunch of homing missiles (which do alot) while you have all manner of other monsters after you (alot of HR1/2 levels start off right in the middle of the action with little cover) is just annoying.

2. Arch Viles: Their explosion does alot of damage over a long distance, they revive monsters and are damn fast and tanky. I used my bfg on them way more than I remembered because there are so many jump scare arch viles in HR1/2

3. Cyberdemons: Its not so much that they're difficult to fight as all that's required is strafing but when you're short on ammo a cyberdemon just takes too much to kill. They also feel alot riskier for me to BFG at point blank due to their high fire rate. I was doing one of the later 20ish levels in HR2 and at one point there were four cyberdemons walking around in this small area as well as an arch vile with a bunch of zombie machine gunners on either side up high. It was intense whenever I tried to get a switch flicked or open the "hub" door I had to go through several times.

4. Machine Gun Zombies: Hitscan and in a surprise group when you have something like the super shotgun out they reduce you so quickly. Same with the shotgun zombies but its not nearly as bad.

I actually was happy whenever I encountered a spiderdemon as the big monster since all it takes is one bfg and its dead. Mancubuses are great for causing infighting, arachnatrons are easy to pain chance, though their plasma cannon hurts alot. Barons of Hell deserve a mention I guess cause they chew up ammo.

Anyone have a particular annoying enemy, or does my top 4 look similar to yours?