Let's just skip the intro and cut to the actual content; I'm sure you all would rather keep playing the game than read through walls of text.

Currently, therer's no way to really tell if you've killed an ace or not in-game, but for the majority of the time each ace drops a unique weapon. Unfortunately, normal skirmish ace drops end up being identical weapon as some of the story mission ace drops. There's 10 of those overlapping identical drops and I'll list them separately so it's a 50/50 chance to try and hit the ace you missed (If you're unsure, it's probably better to try the skirmish map first as they are easier to complete usually). Bottom line is, if you cannot find a corresponding weapon in your equipment tab, chances are you missed that particular ace.

Latest update Nov. 6, 2018 - includes maps for all dlcs that have Ace weapons up to the expert skirmish pack.

• ZM Kar 1(e) - Chapter 2, normal skirmish 2
  
• ZM Kar 2(e) - Squad Stories: Like Old Times, normal skirmish 4
  
• ZM Kar 3(e) - Chapter 8.2, normal skirmish 7
  
• ZM Kar 4(e) - Squad Stories: To Live Unbound, normal skirmish 9
  
• ZM Kar 5(e) - Chapter 15.2, normal skirmish 10

• ZM MP 1(e) - Chapter 3.1, normal skirmish 3
  
• ZM MP 2(e) - A Prayer for the Broken, normal skirmish 5
  
• ZM MP 3(e) - Unfortunate Souls, normal skirmish 6
  
• ZM MP 4(e) - Chapter 14.2, normal skirmish 8
  
• ZM MP 5(e) - Chapter 16, hard skirmish 1

Apologies for the ugly table in advance, but hopefully this will make it easier to keep track and find which section of the guide you need to search when double checking against the in-game weapon list in the equipment sections.

Legends - Skirmish (N) = Normal, (H*) = Hard, (C**) = Challenge

RIFLES:


MACHINE GUNS:


LANCER MORTARS:


SNIPER RIFLES:


GRENADIER MORTARS:



**TANK PARTS**
Main Story:
Spring Drive (Cactus)
Firing Calculator (Glory)
Firing Calculator (Hafen)

Squad Stories:
Reinforced Frame (Hafen)
Spring Drive (Glory)

Skirmish (Challenge):
Reinforce Frame (Cactus)

Chapter 2 - ZM Kar 1(e)


Chapter 3 - ZM MP 1(e)


Chapter 4.2 - VB PL 1(e)


Chapter 4.3 - ZM SG 1(e)


Chapter 6 - VB GW 1(e)


Chapter 7.1 - ZM SG 2(e)


Chapter 7.2 - Spring Drive (Cactus)


Chapter 8 - ZM Kar 3(e)


Chapter 9 - VB PL 3(e)


Chapter 10 - VB GW 2B(e)


Chapter 11.2 - Firing Calculator (Glory)


Chapter 12 - VB PL 1B(e)


Chapter 13 - ZM SG 4(e)


Chapter 14 - ZM MP 4(e)


Chapter 15.1 - Firing Calculator (Hafen)


Chapter 15.2 - ZM Kar 5(e)


Chapter 16 - ZM MP 5(e)


Chapter 17.1 - VB PL 4(e)


Chapter 17.2 - ZM SG 5(e)

Squad Stories: Like Old Times - ZM Kar 2(e)


Squad Stories: A Prayer for the Broken - ZM MP 2(e)

Squad Stories: Reluctant Solitude - VB GW 7B(e)


Squad Stories: Honor, Pride, and Regret - VB GW 3(e)

Squad Stories: Worlds Apart - ZM SG 3(e)


Squad Stories: To Live Unbound - ZM Kar 4(e)


Squad Stories: Treading New Ground - Reinforced Frame (Hafen)


Squad Stories: Legacies Left - Spring Drive (Glory)


Squad Stories: Love and Logic - VB GW 4B(e)


Squad Stories: Unfortunate Souls - ZM MP 3(e)


Squad Stories: Gambler's Ruin - VB PL 2(e)


Squad Stories: Soul of the Navy - ZM Kar 6(e)

Normal Skirmish 2 - ZM Kar 1(e)


Normal Skirmish 3 - ZM MP 1(e)


Normal Skirmish 4 - ZM Kar 2(e)


Normal Skirmish 5 - ZM MP 2(e)


Normal Skirmish 6 - ZM MP 3(e)


Normal Skirmish 7 - ZM Kar 3(e)


Normal Skirmish 8 - ZM MP 4(e)


Normal Skirmish 9 - ZM Kar 4(e)


Normal Skirmish 10 - ZM Kar 5(e)

Hard Skirmish 1 - ZM MP 5(e)


Hard Skirmish 2 - VB PL 2B(e)


Hard Skirmish 3 - ZM MP 6(e)


Hard Skirmish 4 - VB PL 5(e)


Hard Skirmish 5 - VB GW 5(e)


Hard Skirmish 6 - ZM SG 6(e)


Hard Skirmish 7 - VB GW 6(e)


Hard Skirmish 8 - ZM MP 7(e)


Hard Skirmish 9 - ZM Kar 7(e)

Challenge Skirmish 1 - VB PL 3B(e)


Challenge Skirmish 2 - ZM SG X(e)


Challenge Skirmish 3 - Reinforced Frame (Cactus)

Expert Skirmish 1 - ZM Kar X(e)


Expert Skirmish 2 - VB PL6(e)


Expert Skirmish 3 - ZM MP 8(e)


Expert Skirmish 4 - ZM SG X2(e)


Expert Skirmish 5 - ZM Kar 8(e)


Expert Skirmish 6 - VB GW 8(e)

A Captainless Squad

• A Sleuth of Bears - ZM SG XD(e)
  
  
  
• Snowball Fight - ZM MP XD(e)
  

Squad E, to the Beach!

• Map 1 - Swimsuits for Claude, Riley, Kai, and Raz
  
• 
  
• 
  
• 
  
• 
  
  
• Map 2 - Swimsuit for Minerva
  
• 

This is a list of all weapons that you need to obtain to complete the Excellence in Armament medal and the Arms Racer achievement for each class. It does not include any reward weapons from DLCs currently as they don't count towards medal / achievement.

Infirmary Rank 1 to Rank 5 weapons correspond to the order of weapons listed under the Mission Rewards tab. In other words, Rank 1 will only ever possibly give you the 1st weapon listed under the Mission Rewards for each class, and Rank 5 will only ever possibly give you the 5th weapon listed etc., with the exception of lancer mortars.


Rifles:
R&D Development:

• Lenfield M14
  
• Brown M10
  
• Gallian S23

Mission Rewards / Infirmary:

• Lenfield R1
  
• Gallian X1R
  
• Gallian A10R
  
• Gallian X20R
  
• Lenfield R11

Enemy Ace Drops:

• ZM Kar 1 to 7(e)

Machine Guns
R&D Development:

• Robinson M104
  
• Reising M9A10
  
• Mags M23

Mission Rewards / Infirmary:

• Robinson M91R
  
• MAJ-X M1R
  
• Reising M9A1R
  
• MAJ-X M30R
  
• Robinson M101R

Enemy Ace Drops:

• ZM MP 1 to 7(e)

Lancer Mortars
R&D Development:

• M2EQ-14
  
• SB9-10
  
• Lancaar SH M23

Mission Rewards / Infirmary:

• Lancaar M1R (infirmary rank 1 or rank 2)
  
• M2EQ-5R (infirmary rank 3 or rank 4)
  
• SB9-7R

Enemy Ace Drops:

• VB PL 1 to 5(e)
  
• VB PL 1B to 3B(e)

Sniper Rifles
R&D Development

• LF Wasp No.14
  
• LF-ASR No.10
  
• GSR-33

Mission Rewards / Infirmary:

• LF Wasp No.1R
  
• Brondel M101XR
  
• LF-ASR No.1R
  
• Gautt R
  
• LF Wasp No.11R

Enemy Ace Drops:

• ZM SG 1 to 6(e)
  
• ZM SG X(e)

Grenadier Mortar
R&D Development

• Sanders M14
  
• Elias MA13
  
• Hartman MS13

Mission Rewards / Infirmary:

• Hartman MS1R
  
• Sanders M3R
  
• Elias MA4R
  
• Sanders M8R
  
• Hartman MS10R

Enemy Ace Drops:

• VB GW 1, 3, 5, 6(e)
  
• VB GW 2B, 4B, 7B(e)

Infirmary Rank 5 is not automatically unlocked. The criteria to unlock Rank 5 is to achievement 80% completion rate on all the following maps (verification needed):
2-1, 4-1, 4-3, 6-1, 9, 11, 13, 14, 15-1, 17-1, Squad E Assemble

Completion is factored by the following 5 conditions -

• Obtain A Rank
  
• Killing leader units (the ones with the gold CP emblem that breaks upon their deaths)
  
• Killing tank units (including gatling guns and heavy AT guns)
  
• No deaths
  
• No KOs / evacuations

If you're looking for all weapon completion and are still missing weapons after killing all aces, then you're either missing boss kill drops (Vulcan / Crymaria / Nikola / Chiara) or Gallian/Federation rewards from killing leader units etc. I believe the actual weapons rewarded are random (later chapter boss kills reward correspond to infirmary rank 5 weapons and it's the only way to get the rank 5 weapons if you don't have infirmary rank 5 unlocked yet). You can obtain the reward weapons more easily by trying your luck at the infirmary and keep saving / loading until you get the ones you're missing.

in case anyone was wondering, the screenshots were actually saved from a Chinese guide, so credit goes to user "lzlzmc" for the initial Chinese guide and "psnine" for the source. I mostly just did the translation / editing and corrected the changes on the VB MT 1~3B(e) weapon series; the names were changed to VB PL 1~3B(e) in our release version and correspond to lancer weapon drops.

Also, this is the full list of aces and drops currently in-game that are relevant towards earning medals / achievements. If a map's not shown on here, it doesn't have an ace.


Hope this helps,

- ukie