The game gives you all the tools you need and more to complete every map, and it's up to you how to use them. Character builds are very flexible and adjustable before each map to fit the situation, so if you're getting stuck somewhere it might be time to rethink your strategy.
A concrete example from my first playthrough: I was facing a large group of beasts and kept losing and losing. Up until then I had just been bringing my favorite characters in terms of personality, but when I instead brought a heavy phalanx frontline to keep my guys in the back safe, that encounter became a breeze since the enemy was too slow to even touch my backline.
The game isn't particularly difficult, but there's lots of this in the game. Facing undead? Bring someone who can do exorcism. The enemy has a lot of archers? Equip weapons/skills that let you deflect arrows. I am simplifying, and there's always more than one solution to each problem, but you're going to need to plan for each map before you go in.
Tactical RPG's are my favorite genre of games, and Tactics Ogre (not Ogre Battle) in any of it's many iterations is my favorite. No game is perfect but it does so many things so, so well. Matsuno's magnum opus. The latest version, Tactics Ogre Reborn added high quality voice acting which I really love.
I've made it a habit to type out the command without sudo at first, then when it yells at me about permissions I am reminded to go back and double-check.
I got back into it about a month ago, picking up from where I left off in 2019. I'm playing the stories and maps in chronological order, and because there's loads of incentives to go do stuff or collect things in older maps, there's been people around the entire time. People have been super-duper helpful to me anytime I mention that I'm a returning player. Lovely game, lovely community.
I didn't need to see that GNU logo today :) but I did