I have come to ask some advice from the bay12 hivemind. I'm a new player to Warframe and I feel a bit ... overwhelmed when I opened up the marketplace. So much Frames and weapons and goodies ...
I dropped some credits on the Rhino frame blueprint and am slowly grinding my way to Venus (where the boss drops the parts for the frame). Is the Rhino a good frame to have? And what weapon makes for a good mix with that frame? I'm a big fan of slow and tanky, with high damage / low fire-rate weaponry (and hammers and axes!). But I have no idea on how to go about attaining that "goal".
Azywing's post is pretty accurate. I'd also like to add that, since you are a new player, I would not recommend leveling mods like Serration and Vitality (or any mod with a high level cap, really) up to max, since doing so requires more
endo and credits than it's worth for a new player. Keep them at around mid-level until you get to places where farming endo and such is less painful. You'll also use less capacity which leaves room for other mods.
Rhino is a great frame for newer players, and if you like being tanky he's perfect for you. Iron Skin stacks strength with your armor, so throw Steel Fiber on your Rhino along with Intensify if you have it.
If you like shotguns, like me, you're in luck! Shotguns in Warframe are pretty great (unlike many games...) and a few of them are actually considered top-tier weapons. To start with you'll probably want to go with the MK1-Strun, as it's cheap and doesn't require you to wait for it to build in the foundry. In fact, I'd say you should grab all of the MK1 weapons just so you can try them out, level them, and then get rid of them once you get them all to 30.
Once you're done with the Strun you'll probably want to try out the Tigris, which is a dual-trigger double-barrel shotgun that fires when you push the trigger and again when you release it; you'll have to wait until mastery rank 4 to get it though, so start leveling those MK1 weapons.
The other shotgun you'll probably want to go after is the Hek, which you can get a pretty sweet syndicate mod for later on which makes it extremely powerful. It also has a syndicate version that isn't quite as powerful per shot but has twice the magazine capacity.
Unfortunately in order to get the Hek you're going to need to be in a clan with the weapon researched disregard that, I had owned items hidden so I didn't see it in the market, it just requires MR4, while the Vaykor Hek requires you to level the Steel Meridian syndicate to its highest level and then spend 125,00 syndicate standing to get it, which is going to take forever for a new player.
If you want to add me my IGN is Ozyton.