Estimated achievement difficulty: 7/10
Offline: 12 (200)
Approximate time: 10-12 hours (Depending on skill)
Minimum number of playthroughs: 1 (Multiple level replay for ranking and leveling)
Missable achievements: Yes, but you have the ability to replay levels, so none of them should be a problem.
Does difficulty affect achievements: Yes: Tough Stuff, Mega kill Combo, and Lord master of Great Skill
Glitched achievements: Maybe: Some people are having problems with "The Daily Grind."
Unobtainable achievements: None
Extra equipment need: None
Avatar awards: Yes
Renegade Ops follows an awol group of battle hardened ass kickers trying to stop the end of the world. Your typically case of madman trying to blow up everything we know, and man is he relentless. As you may have guessed the game's story is about as cheesy as they come and is painfully predictable. The game itself is a blast to play but it can be quite irritating at times, namely the physics system. You will roll, flip, get stuck, and bounce around and off of nearly everything. Doesn't sound too bad but it will get you killed and when you have less lives (when playing on Hardcore) and/or are near the end of the level it can get really annoying.
The Meat and Potatoes:
I highly suggest that you play on normal first and build your character up before attempting to play the game on hardcore, but you can choose it from the start if you want. Since you can carry over any character you've already leveled up to any difficulty you want it make live a little bit easier for you. With that being said a lot people are having trouble with their levels and abilities being reset, I got the achievement for maxing out a character, so it can be done.
These achievements are missable: Inferno's Brief's, Supply Problems, From Cold Dead Hands, Jonesing for Relics, A Mess of Stiff Staff Sergeants, and Goody Two Shoes
. All these achievements are secondary objectives on certain missions (will be listed below) and are indicated by a black arrow pointing you in the direction to obtain or destroy them. They can be hard to see since some levels you play at night on and the red arrow (primay objectives are indicated by this) will sometimes overlap making it harder to see.
They are all easy to get and all but two of them are on your way to taking primary objectives, so you wouldn't have to go too much out of your way to get them. Keep in mind though that you are timed on everything you do, the timer isn't and won't be displayed until you have 3 mintues left to finish your current primary objective and if you fail a primary you fail the level. Goody Two Shoes will most likely get you a mission failed since you really have to go out of your way to get this one. A Mess of Stiff Staff Sergeants is the other one you'll have to go out of your way to get, but you should have more than enough time to get it.
Oh, one more thing, finishing the primary objectives will disable some of this secondary objectives and will require you to replay the level to get them. I suggest you got for these as soon as you can and on the normal run, since you need to take your time on hardcore.
Since I brought up hardcore, I think the devs really wanted to torment anyone looking to play this game on said difficulty. As I said above you need to take it slow but here's the catch, this difficulty it the key to getting the Alien ranking and the 50x damage achievement.
So in a nutshell, the game can/is a pain to get some achievements but is a lot of fun to play either way you cut it. The largest part of how easy the game can be depends on how good you are, you really have to get used to the controls and what you can and can't get away with. I gave it a 7 out of 10 and am just playing it safe with that, some people may find it harder than that and some may find it easier than that, I'm open for discussion as far as that goes.
Any feedback, tips, or info on the guide or for getting the Mega Kill Combo and Lord Master of Great Skill achievements will be much appreciated. As always, happy hunting.