We Are Legion DLC — Legion Tank missing upgrade slot for Heavy 155mm cannons, looking for official post/patch

[Wyk0416]

I’m playing the vanilla game (no mods) of Terminator: Dark Fate — Defiance and installed the We Are Legion DLC; according to the dev diary and DLC description the Legion Tank should immediately gain an upgrade slot allowing it to equip Heavy 155mm cannons, but in my game the Legion Tank never shows that upgrade slot. After progressing several campaign missions the Heavy 155mm cannon does appear in encounter decks/shops as a blueprint/item, yet the Legion Tank unit UI still lacks the install slot so I can’t fit the weapon. I’ve tried restarting, reinstalling, and replaying the DLC on a fresh save; the DLC shows as installed but the tank UI still has no upgrade slot. Has anyone seen the exact same behaviour? Is this a known bug, a required upgrade-tree/blueprint trigger I missed, or is there an official thread/patch note addressing it? I can attach screenshots and version/save details if needed.
我在原版（无 mod）的《终结者：黑暗命运——反抗》中安装了“我们是军团（We Are Legion）”DLC。按正常情况，安装 DLC 后 军团坦克 应该会直接获得用于安装 重型155mm加农炮 的改装点，但我的游戏中始终没有出现这个改装点。推进剧情几关后，我能在遭遇战卡组和商店里看到“重型155mm加农炮”的配件卡片，并可以加入卡组，但军团坦克的单位界面没有任何新增的改装槽位，因此无法安装这件武器。我尝试过重启游戏、重新安装、以及用新存档重新跑一遍 DLC 剧情，情况都没有改变。想确认这种情况是否是已知的 D LC 问题，或者是否还有某些升级蓝图或流程条件需要触发。如果社区或官方曾讨论过类似情况，希望能提供原帖链接或补丁信息，我可以进一步查看；若需要我补充截图或版本信息也可以提供。