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!
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".
To drive the point home, this all to the sound of "You're all my best friends".
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.
Right before the aforementioned battle, one of the Kuromorimine girls who was saved by Miho in last year's finals thanks her for her heartful effort back then.
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.
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.
In episode 4, 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 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.
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.
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 Book Ends 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.
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!.
Nonna singing "Bayushki Bayu" to Katyusha. It really drives home how close the two are.
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.
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.
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.
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 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.