Resistance 2 includes 11 online trophies. Unfortunately, the servers to the game were closed on March 28, 2014. As a result, the 11 online trophies - and therefore the platinum trophy - have since become Not Obtainable.

Since the online servers were closed on March 28, 2014, the 11 online trophies - and therefore the Platinum trophy - are now Not Obtainable. However, the game still contains 27 offline trophies, so if you're still interested, then read on.

If you're in a rush, start the single-player mode on Difficult. Clearing it will unlock the Superhuman mode, which will need to be completed in order to gain the OMGWTFBBQ trophy.

Although keep in mind there are several other challenges throughout the single-player game to unlock trophies, such as Snipe Hunt, Master Spy, etc. which may be easier and less distracting if first playing on Easy.

Note: All kills are counted through all playthroughs. In fact, if you find a good spot to use, for example, the sniper for unlocking the Snipe Hunt trophy, simply kill as many as you can until you're out of ammo, kill yourself and do it again until you've gotten the appropriate 30 kills. Collecting all the single-player trophies in Resistance 2 is not much more difficult than, say, the Uncharted series. Check out the Resistance 2 trophy guide links under our Links tab to see which offline trophies you still need and their requirements.

Unfortunately, with the online servers closed, this is as far as we can go.

Story-wise, walkthroughs are not particularly necessary for clearing the game, as for the most part you're just heading from A to B and shooting everything in your way. But they are necessary for collecting all the Intel.

So, here's the Walkthrough from IGN:
http://guides.ign.com/guides.14211237/page_5.html

And another Walkthrough from Mahalo, which is more text-based but includes videos:
http://www.mahalo.com/resistance-2-walkthrough/

And another Walkthrough on Gamespot, which is mainly text-based:
http://www.gamespot.com/features/6202113/p-3.html

For Trophy Guides, here's one by Sterling McGarvey on Game Spy:
http://ps3.gamespy.com/playstation-3/resistance-2/926644p1.html

Another Trophy Guide by Moose_PS3T:
http://www.ps3trophies.org/game/resistance-2/guide/

And a Trophy Guide on Game Shark:
http://www.gameshark.com/cheats-guides/2423/Resistance-2-Trophy-Guide.htm

And another Trophy Guide by Phoenix8387, which includes the odd video:
http://playstationlifestyle.net/2008/11/17/trophy-guide-resistance-2/

And a purely text-based but detailed Trophy Guide by Dakota:
http://www.gamefaqs.com/ps3/944521-resistance-2/faqs/55922

Finally, here's a basic Trophy List:
http://www.ps3trophies.org/game/resistance-2/trophies/

As you can tell by the 2-star rating, this Platinum is far easier than its predecessor. If you've managed to collect all the offline trophies on Resistance 2, then you would have had the Platinum by now on Resistance 3.

Aside from two co-op trophies, which can be played with a second controller, Resistance 3 has no online trophies. Requires two full playthroughs, one of them on Superhuman difficulty, and using a chapter select to mop-up. Overall, depending on your FPS skills, expect around 30 hours to complete.

What you'll want to do first is start on Normal playthrough. Along the way, follow one of the guides in our Links page to locate all the intel for the Archivalist trophy. Also, there are several chapter-related trophies which you can earn, as well as working towards the kill-related ones. If you don't collect them by the end, it's no problem. There's always a chapter select to mop-up anything you missed.

After completing Normal, you will have unlocked Superhuman mode. Your next assignment is to get through Superhuman difficulty, for the Brutal trophy. This will probably be your most difficult trophy.

After that, it's simply a matter of using chapter select to mop-up anything you're still missing. Check out the Resistance 3 trophy guide links under our Links tab for specific details to whatever trophies you need.

First, IGN has a decent Walkthrough, here:
http://www.ign.com/wikis/resistance-3/Walkthrough

This is a set of video Walkthroughs, by Kurtis Seid:
http://www.gamespot.com/articles/resistance-3-walkthrough-primer-guide/1100-6333123/

And a text-based Walkthrough, by redapocalypse04:
http://www.cheatmasters.com/blog/2011/09/13/resistance-3-walkthrough-faq-guide/

Here's a great Trophy Guide, by Timbo and AndrewAnonymous:
http://www.ps3trophies.org/game/resistance-3/guide/

And Kevinnummer1 created a great Trophy Guide, here:
http://ps3trophies.com/forums/showwiki.php?title=PS3-Trophy-Guides:Resistance-3-Trophy-Guide

And a simple, but useful Trophy Guide, by Anthony Severino:
http://www.playstationlifestyle.net/2011/09/07/resistance-3-trophies-trophy-guide/

And a Trophy Guide here, by Josh Romero:
http://www.videogamesblogger.com/2011/09/06/resistance-3-trophies-guide-ps3.htm

Here's a Location Guide for all the Intel, on IGN:
http://www.ign.com/wikis/resistance-3/Journals

tima022790 demonstrates the Zookeeper trophy in this video:
http://www.youtube.com/watch?v=NsFEZvYrN7s

And a video by sunnygrg demonstrating the Slaybells trophy:
http://www.youtube.com/watch?v=bot_cRAf1Ys

If you're looking for a Co-op partner, here's a Boosting Forum on PS3Trophies:
http://www.ps3trophies.org/forum/resistance-3/123303-co-op-partners-thread-read-first-post.html

Finally, here's a basic Trophy List:
https://psnprofiles.com/trophies/1015-resistance-3