These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Brown Note: The VERY first level where the two KPA soldiers kill the screaming child's parents and possibly him. High-strength Brain Bleach would be needed.
Critic-Proof: The game only got mixed reviews from the critics, which contributed to a 20% drop in THQ stocks. The game is THQ's most pre-ordered game, selling 375,000 copies on the first day (pretty impressive for a new IP by a game company that's not Activision or EA games), topped the UK charts until Crysis 2 came out and is still in the top ten, and recently surpassed one million units in sales worldwide (all in one week).
However due to cost it didn't make that much in terms of net profit.
Emotional Torque: The VERY first level where the two KPA soldiers kill the screaming child's parents and possibly him pretty much convinces the player to kill every single KPA soldier ever. Actually pretty much everything the KPA does can have that effect.
Game Breaker: At the time of release, sniper rifles, which have very little sway and very high damage.
Old newspaper articles in the game talk about the GKR deliberately destroying a Japanese nuclear power plant. Homefront had the unfortunate timing of being released right in the middle of the March 2011 earthquake and tsunami that rocked Japan—in Japan, it was released during the Fukushima Dai-ichi nuclear power plant accidents that resulted from the tsunami.
Kaos Studios was shut down the day before the first (and apparently only) Homefront DLC was released. The name of that DLC? "Fire Sale Map Pack"
In the storyline, Kim Jong Il dies in 2012. He actually died in December 17, 2011. Sounds creepy enough...
The Arab Spring, picking up when the game was released, has resulted with Iranians and Saudis trying to exert influence on key countries (Bahrain being one). Wikileaks reveals of Saudis pushing for a war with Iran, and the worsening relations between Iran and the West also took place around the same period.
The plot of the story has North Korea becoming more aggressive after Kim Jong-Un takes power. Given that recently, the North Koreans stepped up their aggressive rhetoric, going so far as to release (laughably) bad propaganda movies...
The Interview has North Korea beating the war drums and threatening terrorist attacks even on foreign film festivals that dared mention the movie. Whether or not they would be a legitimate threat it's enough for experts to be concerned.
Hilarious in Hindsight: The writers of Homefront actually predicted the actual cause as well as the time of Kim Jong-Il's death more or less right (arguably they were only off by a couple of weeks). So far they were wrong about Kim Jong-Un being a dangerously competent and charismatic Evil Genius, but the decade is still young. They were also right in predicting Kim Jong-Un's ability to manhandle the Generals opposed to him and more or less re-assert his control over the previously dysfunctional and uncontrollable military.
Inferred Holocaust: Judging by some of the gameplay videos, backstory, and trailers, it appears that the Greater Korean Republic army kills everyone indiscriminately when they invaded the United States. Their occupied Asian states like Japan probably suffered the same fate as well. Of course, like the Imperial Japan expansion, there are going to be quislings in the occupied United States who want to save their own asses or get themselves out of the bad economic situation.
It's Short, so It Sucks : Many reviewers voiced complaints about the short length of the campaign, with five hours being the common number.
Paranoia Fuel: A majority of the events in this game could actually happen in real life. In fact, Kim Jong-II died on December 17, 2011—so very close to the date of his death in Homefront's timeline. Just like in Homefront, Kim Jong-Un succeeded him. Cue a Mass "Oh, Crap!" from Homefront's fans. However, he seems to be more or less like his dad in terms of running things (not particularly well) instead of the brilliant conquerer that he is in this game.
Memetic Mutation: Since Japan is replacing every reference to Korea with a "Northern Country", Canada is apparently the greatest threat in the known world.
Moral Event Horizon: Anything the North Koreans do. It's pretty much made clear that the player feel zero pity for them.
The Survivalists cross it within minutes of meeting you.
If you had any sympathy for the North Koreans after the opening level (which was almost none to begin with), it was completely lost by the time you find a mass grave where all of the re-education subjects were systematically executed and put into a gigantic pile to be forgotten. Did we mention you had to lay down in the corpses to hide from them?
Also, see Harsher in Hindsight above. Considering the devastating effects of the Fukushima Dai-ichi nuclear plant meltdown in Real Life, this qualifies incredibly well.
Not to mention what happens when the Resistance base is attacked. There are a large number of children in it, and the KPA kill everyone in th etown.
Nausea Fuel: At one point you have to hide in a mass grave to avoid getting shot. By the way the black guy's lifeless stare sticks in your mind.
They Wasted a Perfectly Good Plot: What some reviews said about the game's single player, arguing that the entire occupied US thing could had been explored in greater detail, along with more character development, but was nudged aside for COD style gameplay and game mechanics, putting the campaign into So Okay, It's Average territory. They were much more positive about the multiplayer, though.
Kaos Studios has announced that they will attempt to rectify this by developing DLC campaigns to continue the story, and to lead up to a sequel that is already in the works.
Villain Sue: Kim Jong-Un. On one hand, he manages to take a backwater, underdeveloped pariah of a nation and uses it to gain control of South Korea (presumably in a sufficiently subversive, non-violent manner that he credibly gets the Nobel Peace Prize for doing so), takes over several major neighboring nations, and build up the Korean army to the point that it's able to successfully take over the United States. On the surface, this looks like Draka-level hypercompetency. And that part about reunifying Korea non-violently under his rule? Yeah, he does that in one year.
On the other hand, there are mitigating factors. The United States (as well as other major world powers) had been weakened by a global economic crisis. In the case of the U.S., the situation was so bad that the states were given autonomy and were just a few steps away from civil war. The Asian Bird Flu epidemic only made things worse. One in-game newspaper article notes that when Canada closed its borders to the U.S. (thus requiring a visa to enter), there were also new laws requiring permits for food, materials, medicine, and other supplies. The implication is that a lot of people were trying to leave the country—and this is all before the GKR fried almost every non-hardened piece of electronic hardware in North America with an EMP.
The Irony is that the real life's Kim Jong-Un's rule is the complete opposite of the events that lead up to the game's plot: by all indications, he's driving the nation even more into the ground with a new famine on the rise and droves of soldiers are running to the borders due to lack of food even for the military. And rather than the world looking the other way, they're cracking down hard on North Korea; even China, their biggest ally, has given them an uncharacteristic cold shoulder, probably stemming from increasing public opinion that North Korea is simply not worth the trouble.
The idea that North Korea could either unify or conquer Southeast Asia given the region's internal grievances and powerful militaries.
What an Idiot: The Nobel committee give Kim-Jong Um a Nobel Peace Prize for peacefully reuniting Korea. Five years later, the Greater Korean Republic invades Japan.