Use the following trick to complete levels easily under the Hard difficulty setting for related achievements or trophies. Complete a level under the Easy difficulty. Return to the final checkpoint at the level selection screen. Change it to the hard difficulty setting, then complete the remaining portion of the level again.
On Broken Hope, it is possible for a Scout chassis with dash to get on top of the Tram-way. To do so, first get on top of the 2nd story for the main courtyard and head to where the bridge extends into the X12 Scrapmaker (Chain/Gatling gun) room. Turn around so you can see the over shield room. The jump from between the two robot statues is clearable with a vehicle-to-robot dash-jump. To do so, throttle up, jump from the closest point, jump, transform preferably as you're still gaining altitude, and dash into the window. After hitting against it, turn to your right, and sidle along the edge until you're as close as possible to the tram. This is the tricky part: double-jump while headed to the right and dash forward once you get at the correct position to make it into the nook between the destroyed section. If you've made it this far, you're good. Now transform to squeeze under the the rail-way, and there you go. As mentioned before, it should be possible to do it with any character capable of dashing, the first jump would be about timing, timing, timing: transform at the point where you can jump from between the two statues, and double-jump, to dash.The second one seems to be perfectly within the Big Bot's jumping distance. This isn't particularly useful, but a trick that might help your friends or keep you alive if you're the last one standing. If you are the last one left, believe me, this is one those things you wanna be able to nail every time.
If your Transformer is stuck in mid-air due to a bad collision, you can generally initiate a transformation and the game will "bump" your robot back into the playfield. If you fall through the floor though (often as a vehicle), you must restart from your last checkpoint.
ACHIEVEMENT - HOW TO UNLOCK A Prime Problem (10 points) - Complete Defend Iacon on any difficulty. The Last Prime (10 points) - Complete Kaon Prison Break on any difficulty. You Got the Touch (10 points) - Complete To the Core on any difficulty. The War Within (10 points) - Complete Aerial Assault on any difficulty. The Harder They Fall (10 points) - Complete One Shall Stand on any difficulty. Paging Ratchet (15 points) - Revive 5 Autobot soldiers in Defend Iacon. Beak Breaker (15 points) - Shoot the 3 Hidden Laserbeaks throughout Kaon Prison Break. Slugfest (15 points) - Save the Slug before it is executed in To the Core. Powerglide Performer (15 points) - Fly through the coolant tunnels in 23 seconds in Aerial Assault. First We Crack the Shell... (15 points) - Get smashed by Trypticon's hand as he falls into the energon goo in One Shall Stand. Autobot Recruit (15 points) - Autobot Campaign Complete (Easy). Autobot Commander (30 points) - Autobot Campaign Complete (Medium). Autobot Prime (45 points) - Autobot Campaign Complete (Hard). Dark Awakening (10 points) - Complete Dark Energon on any difficulty. Starscream's Brigade (10 points) - Complete Fuel of War on any difficulty. The Fall of Iacon (10 points) - Complete Iacon Destroyed on any difficulty. The Secret of Omega Supreme (10 points) - Complete Death of Hope on any difficulty. Victory is Mine (10 points) - Complete The Final Guardian on any difficulty. Your Lucky Day (15 points) - Kill all but 1 of the neutral prisoners in Dark Energon. Thief in the Night (15 points) - Find and disable all security trip-wire switches in Fuel of War. Chaos Bringer (15 points) - Destroy the planets in the Stellar Galleries in Iacon Destroyed. Motormaster! (15 points) - Race across the Chasm Bridge in 33 seconds in Death of Hope. Devastator! (15 points) - Destroy all cover in the arena in The Final Guardian. Decepticon Grunt (15 points) - Decepticon Campaign Complete (Easy). Decepticon Seeker (30 points) - Decepticon Campaign Complete (Medium). Decepticon Warlord (45 points) - Decepticon Campaign Complete (Hard). Till All Are One (30 points) - Complete both Campaigns (Any Difficulty). Brute-a-kiss! (15 points) - Ignite a Brute's back 5 times in Campaign or Escalation. Footloose and Fancy Free (15 points) - Destroy a Jet Soldier's foot thruster 5 times in Campaign or Escalation. That's No Mirage (15 points) - Headshot a Cloaker when it is invisible in Campaign or Escalation. Targetmaster! (15 points) - Kill 2 Snipers in 5 seconds in Campaign. There Are Parts Everywhere (15 points) - Multi-Kill 3 car soldiers at once using an explosive weapon in Campaign or Escalation. Blast-arachnia! (15 points) - Destroy 100 Spiders in Campaign or Escalation. Fire in the Sky (15 points) - Melee-kill a Jet Vehicle in the air in Campaign or Escalation. Friends to the End (15 points) - Finish any level in Co-Op. Unlikely Allies (15 points) - Finish any level in Competitive Co-Op. More Than Meets the Eye (15 points) - Earn a 1st Place MVP award in any Multiplayer mode. You Got Spark, Kid (5 points) - Reach level 5 in any single class in Multiplayer. Spike's BFF (15 points) - Reach level 25 in any single class in Multiplayer. The Kup's Half Full (25 points) - Reach a combined class level of 50 in Multiplayer. Only the Strong Survive (50 points) - Reach a combined class level of 75 in Multiplayer. Top of the Scrap Heap (75 points) - Reach a combined class level of 100 in Multiplayer. Prime Directive (30 points) - Unlock Prime Mode. Powermaster! (30 points) - Spend 25,000 Power in Escalation mode. Heavy Metal War (50 points) - Complete the 15th wave in Escalation. Scavenger Would Be Proud! (25 points) - Destroy all hidden Autobot symbols in the Decepticon Campaign. Grimlock, Smash! (25 points) - Destroy all hidden Decepticon symbols in the Autobot Campaign. Action Master (15 points) - Get 10 kills with a single detached turret in any mode. Wait! I Still Function! (30 points) - Get 3 kills while downed in a Co-Op Campaign or Escalation mode. Ramhorn (15 points) - Ram-kill against an enemy who is stunned by an EMP grenade in Campaign or Multiplayer.