Every time Miho seems on the verge of breaking down, and her friends — Saori and Hana especially — give her their quiet support. A great example of this can be seen during the chase in episode 6.
A crowningnote that is, the one that marks a character's biggest accomplishment example would be right before the big rescue of episode 11, when Miho, with the very continued existence of their school hinging on their victory alone, is torn between her desire to rescue her teammates and her fears (quickly rising to crippling levels) of the time spent for that rescue costing her team a defeatagain. Cue a simple "Go save them" and a nod from Saori. Then cue Miho's eyes GLEAMING as she jumps into action... an action detailed down this page, because it's heartwarming on itself.
Saori and Hana, who initially wanted to do Tankery, switched without hesitation to Miho's choice of elective class to be with her, and were willing to face expulsion (or so they thought) in order to spare Miho the traumatic memories that doing Tankery again would rise.
Seconds later, Miho decides to enter Tankery, not for fear of expulsion (which would be in the tearjerker entry), but out of gratitude to her friends' standing up for her, something that she later tells them no one has ever done for her before - so she switches to THEIR initial choice of elective class, traumatic memories be damned.
In episode 7, Yukari comments that Miho's former teammates that she saved when their tank fell in a river must be really grateful for it. Come episode 10 and we see the aforementioned former teammate thanking Miho, and Yukari watching on with a marvelous'I told you so' expression (also making it an In-Universe example).
In that very scene of episode 10, there's another subtle line that doubles as Moment of Awesome. This time for aforementioned nameless former teammate's simple request to Miho: Do not quit. Anyone with even a passing experience in any sort of competitive sport or martial art will understand what makes it awesome. Also for Miho's simple answer: She won't.
In Episode 8 then the Student Council tried to tell Miho that their school is going to be closed down if they don't win, but couldn't and instead tried to be generally nice and showed her pictures of fond memories in the past, even a photo with The Comically Serious smiling!
Nonna singing "Bayushki Bayu" to Katyusha. It really drives home how close the two are.
Hana's flower arrangement at the exhibition, and her reconciliation with her mother, who now understands her better.
What makes it better is in Episode 4, immediately after getting disowned, Hana tells her friends that "Someday, I'll arrange some awesome flowers that'll make my mother understand." Hana's belief that her mother will come around at a time like that might make her a Love Martyr or Horrible Judge of Character in another series, but here, she's correct. Her mother seems to, from what we've seen, be typically warm and loving, but happened to take the sudden news of her daughter doing Tankery poorly and overreact, and it's nice to see that they reconciled.
Episode 10. In what is indeed an Awesome Momentof Heartwarming, they offhandedly mention that many other clubs have forked over additional money to support The Team. They use that money to buy a Hetzer conversion kit. Let's say again: the other school clubs pool enough money to buy a tank upgrade kit, complete with high-velocity 75mm gun and heavy cast armournote Keep in mind that Ōarai is in very dire financial trouble. Sometimes, what's awesome is not the ass-kicking but the silent support...Anyone familiar with the usual dynamics between school clubs (most oftentimes NOT so sharing and friendly) will get a warm, fuzzy feeling out of that apparently unimportant line.
The "night before the battle" sequence in Episode 10 showing the various teams bonding, in ways that reference what made them be teams. Also, almost all of them eat some kind of katsunote (breaded, deep-fried pork cutlet), which is an homophone of the verb katsu, meaning "to win".
It says a lot about this series that many of their heartwarming moments are also moments of awesome. There's even an In-Universe example of it, judging from Orange Pekoe's reaction, mix of awe and joy, to Kay's and Miho's conversation in Episode 6 when Kay makes Miho understand that there's more to Tankerynote little things like fair play, sportsmanship, friendship and fun than just winning at all costs.
The "More to Tankery" bit gets an immediate callback in the next scene, when Mako learns that her grandmother has been hurt and is in the hospital, and they have no way to get there quickly.Maho immediately offers the use of her school's helicopter to get Mako there as soon as possible, evidently considering it a decision not even worth discussing.
In the manga retelling, she is not keeping a poker face: she is positively about to burst with pride
Scarce moments later, Hippo Team finds their time of greater desire for a revolving turret. To be able to win a fight? Nope. To avoid being ambushed? Neither. To be able to cover Miho!.
A small yet touching example of the team spirit between Oarai's tank crews is found when Hippo Team tries to "avenge Mallard Team" by firing on the Maus, an attempt that fails. Considering that in Episode 8, Sodoko had complained about the team's dress code-defying costumes, only to get blown off, it's a nice indication of inter- as well as intra-team comradeship in spite of their differences.
Maho and Miho's conversation after the match. While previous meetings between them were awkward, in large part because of Maho's Jerkass Façade, it's touching to see Maho accept Miho's own way of Tankery, which she had hoped Miho would find all along, especially when both of them are possibly the happiest they've been in the entire series.
Miho: Onee-chan. I finally found it. My own way of Tankery.
Maho: (smiling) Good.
Reading of the prequel heavily implies that in this scene both sisters consider each other's happy smile as an In-Universe example for themselves.
Throughout the series, the Volleyball Club have been participating in Tankery with the sole aim of reviving their club, so much so that they practice wearing their volleyball outfits. What do they decide after the finals? To continue with Tankery next year - the last year they had, should they manage to revive their school's volleyball club, to join it as their elective. This is not because of they having given up on volleyball (which would be tear jerking), as evidenced by them still wearing their volleyball outfitsin the victory parade, but because they no longer consider Tankery as a second-best to it. Lucky girls: they have twogoals in life now.
The credits scene for Episode 12. It uses the same light, upbeat song as normal, but played over Oarai's victory parade through the streets of town. Out of all the girls, the only one not smiling is shedding Tears of Joy, and the townspeople are out in force, including some recognizable family, cheering and waving.
In the seventh chapter of the Little Army manga, it becomes clear why Maho is trying as hard as she does to please her mother, even if she seems cold to Miho in the process; by fulfilling the role of Nishizumi heir, Miho is free to pursue Tankery the way she wishes.
Maho: Miho, follow your own path. If you come to hate Panzers, it's fine to quit. However, if you wish to continue with Panzers... find a Panzerkraft you can call your own.
Miho's "World of Cardboard" Speech in the last chapter of Little Army, when she concludes why she is doing Tankery, after being reminded of it being a way to improve oneself, and of all the fun she had with her friends.
Miho: It's not for the sake of my family. Neither to imitate Onee-chan... I could do Panzer with everyone this summer. This feel... Became a precious memory. So perhaps- this became my "Panzerkraft".
The Bookends in Little Army. In the first scene, which takes place in the present, Miho is essentially re-enacting her walk to school from the first episode, down to running into the telephone pole while noticing a bakery, and is thinking about the friends she once had. The end of the manga shifts to the anime timeline, and Miho is walking to school, but then Saori calls out to her and the last page shows Miho's four friends.
In a flashback in Motto Love Love Sakusen Desu, Katyusha tries to give a proposal to the commander, but two other Pravda students look down on her for being so small. Nonna then comes in and picks Katyusha up onto her shoulders, declaring that now Katyusha is no longer small, but "much greater than all the others". Recalling this, Katyusha concludes that the bond between her and Nonna is strong, and there are no bad things written in the "Katyusha Diary" she found.
In Chapter 8 of "Motto Love Love Sakusen Desu," while the results are often hilarious, it's nice to see Maho opening up to her teammates in the holiday season (she gets them together because she wants to enjoy the same kind of celebration she enjoyed with Miho), as well as the fact that both she and Miho are thinking of each other during the holiday season, even though they're no longer at the same school.
From the same chapter, while most of the team is traumatized by getting the models of tanks that were their downfall, (or in one case, failed to protect), Koume is quite happy to get the tank model of the tank commanded by Miho, the one who saved her in the last tournament.
Real Life example. The town of Ōarai was heavily hit by the Tsunami in 2011 and even had to receive humanitarian aid from relief organizations for a time. They understandably latched upon the series popularity and tried to milk it for every penny they could through merchandising; the entire town became a tourist trap of tremendous proportions for the episode 12 preview show (trust us, there's tourist trapping, there's overkill, and then there's Ōarai). The fans reaction to this was... getting infuriated? Naaah... Poking fun at them? Neither. They gushed about how nice and polite the Ōarai townsfolk were and acknowledged that they did need every penny. This happened even on websites with horrible reputations as Jerkassesnote 4chan, of all places.
Anzio, and Anchovy in particular, become a Heartwarming Moment for their new reactions in their OVA, which arguably fits better with the series than their original presentation in the manga. The lesson shifts for Miho, from the commander needing to be the one to bring victory no matter what, to knowing that they should always be proud of their team's accomplishments.
In episode 8. Ōarai's tanks are fleeing Pravda's ambush and the Stug III suffers a hit to the tracks, immobilizing it just before it can take cover with most of the others inside an abandoned building. But the Panzer IV - bringing up the rear - rotates to be back to back with the Stug III and pushes the crippled vehicle to safety while covering it from and returning fire against Pravda's forces.
Given Erika's clear disdain of Miho's act of saving that Panzer III costing them their victory, it comes as a surprise that in the light novel version, Erika was one of the crewmembers aboard that particular tank when it fell into the river, making Erika seem like an Ungrateful Bastard. After Oarai defeats Kuromomine however, a tearful Erika herself reveals to Miho that she was grateful for being saved.
Erika: "I'm glad that you didn't quit Senshado."
In Chapter 12 of the Comic Anthology, the team throws a birthday party for Miho. While somewhat overwhelmed at first by all the gifts from various teams, she says that she's happy to celebrate her birthday with her friends, and possibly happiest of all when she gets a text message from her sister wishing her a happy birthday.
Chapters 17 and 18 of Motto Love Love Sakusen desu!, "It's the Conditions at Anzio".
17: The girls of Anzio learn an important lesson about home; that there's no place like it, and no one like Anchovy.
18: Momo-chan remembers that as much as her time in Oorai can seem like a never ending conveyor belt of schadenfreude, she's still the only Momo-chan that Oorai has, and they're the only school she's ever known best. Bonus points to Anchovy, since she willingly concedes that Momo-chan's reforms are what she could never do, and pledges loyalty to Momo-chan.
The overall character development of the first 5 teams of Ooarai tankery squad is one big heartwarming moment as well. As they all start off as individual groups with no experience in the sport, and didn't know what they were getting into. However, because of one girl's efforts for them, the groups decide to better themselves in tankery and not rely on their leader to win. By the final tournament, the first 5 tankery teams have become competent enough on their own, as well has developed such as strong trust on their commander that they will follow whatever commands she gives and, if need be, sacrifice their unit for her.