[Fellow Tenno, Please Stop the MR Abuse!]

I have to say that when I join missions I don’t check MR. I also only play missions with an intent.  If I go into a low exterminate in the void,you can bet I’m farming for Argon. If the only players care about killing and don’t deviate, it may look like I’m leeching, but I’m not. But I’m not in the mission to kill level 15 enemies or clear a tile. 

Im not sure what you qualify as high MR, but I doubt that any high MR goes into missions (especially low) to leech off newbies. You might just not be aware of the objective they’re after. 

[Acquiring Frame Components]

Make sure to level up the mod.  Higher levels have wider ranges.  The mods for frames also stack with mods for sentinels if you have one. I think a fragment is guaranteed to be in every mission. I always find one when I’m farming for mats. 

[What’s the best Warframe you’ve ever used?]

Hydroid. All of his abilities have a use. They might not do the most damage, but they are functional. 

I also bought a random riven for fun and then forma’d my new Twin Kohmak and they totally fit the water pirate.  The reload animation is hilarious. It’s perfect for him.