Any tips for someone who hasnt played Hitman since the 360 days and even then, never finished one lol? I picked up Hitman 1 and 2 while they were on sale to get access to all the areas, and man im having a hard time on just the first level in Hitman 1 lol. The fashion show.
Here's a great video that kinda teaches you how the levels in Hitman 1 and 2 work and how you can find your way in them. Not really a video with tips, but it's a great explanation as to what makes these games so good.
This is also a great one if you like the video above:
As for actual tips: The first time I play a level I usually play through it on the easiest difficulty, just looking around, using costumes, scouting targets and locations, remembering where a lot of stuff is (weapons, poison, outfits, paths of the targets etc). I don't care about if my kill is messy or not, the first time I play throught it is always just to examine the level. Then every time I replay the level I try different tactics until I find one that works where I don't get caught.
Another great tip is to just follow the level missions that every level has. Each mission tells a little story within a level, and they usually supply you with weapons, tools and outfits that can get you close to your targets. This is the 'easy' way to go through levels, since it's essentially a 'follow the marker'-handholding-type way of playing, but they are a great way for newcomers to get into the game.
Ultimately for a lot of players the endgoal of a level, outside of completing the challenges and getting to level mastery 20 (max level), is to complete a SASO run on the highest difficulty. Which means a Silent Assassin (don't get seen/caught), Suit Only (so no outfits) run. Those are only possible to complete when you know the levels as the back of your hand. Sniper Assassin runs are also very fun, and can often be combined with SASO runs. It's often very hard to get to your target carrying a sniper, let alone killing the target without anyone noticing, so it's a great puzzle to figure out how to do those things.
The best tip I can probably give is don't approach Hitman as an action game and maybe not even approach it as a stealth game. It's a puzzle game, so try to figure out how to solve the puzzle, instead of bruteforcing your way through the levels.