diff --git a/app/features/sendouq-match/ReportedWeaponRepository.server.ts b/app/features/sendouq-match/ReportedWeaponRepository.server.ts
index 281207cf1..4423274c3 100644
--- a/app/features/sendouq-match/ReportedWeaponRepository.server.ts
+++ b/app/features/sendouq-match/ReportedWeaponRepository.server.ts
@@ -11,6 +11,23 @@ export function createMany(
 	return (trx ?? db).insertInto("ReportedWeapon").values(weapons).execute();
 }
 
+export async function upsertOne({
+	groupMatchMapId,
+	userId,
+	weaponSplId,
+}: TablesInsertable["ReportedWeapon"] & { groupMatchMapId: number }) {
+	await db
+		.deleteFrom("ReportedWeapon")
+		.where("groupMatchMapId", "=", groupMatchMapId)
+		.where("userId", "=", userId)
+		.execute();
+
+	await db
+		.insertInto("ReportedWeapon")
+		.values({ groupMatchMapId, userId, weaponSplId })
+		.execute();
+}
+
 export async function replaceByMatchId(
 	matchId: number,
 	weapons: TablesInsertable["ReportedWeapon"][],
diff --git a/app/features/sendouq-match/actions/q.match.$id.server.ts b/app/features/sendouq-match/actions/q.match.$id.server.ts
index bd0ab3cf1..d034f0242 100644
--- a/app/features/sendouq-match/actions/q.match.$id.server.ts
+++ b/app/features/sendouq-match/actions/q.match.$id.server.ts
@@ -1,6 +1,5 @@
 import type { ActionFunctionArgs } from "react-router";
 import { redirect } from "react-router";
-import type { ReportedWeapon } from "~/db/tables";
 import { requireUser } from "~/features/auth/core/user.server";
 import * as ChatSystemMessage from "~/features/chat/ChatSystemMessage.server";
 import * as RoomLinkRepository from "~/features/chat/RoomLinkRepository.server";
@@ -26,7 +25,6 @@ import {
 } from "~/utils/remix.server";
 import { assertUnreachable } from "~/utils/types";
 import { SENDOUQ_PREPARING_PAGE, sendouQMatchPage } from "~/utils/urls";
-import { mergeReportedWeapons } from "../core/reported-weapons.server";
 import { matchSchema, qMatchPageParamsSchema } from "../q-match-schemas";
 
 export const action = async ({ request, params }: ActionFunctionArgs) => {
@@ -135,8 +133,7 @@ export const action = async ({ request, params }: ActionFunctionArgs) => {
 
 			throw redirect(SENDOUQ_PREPARING_PAGE);
 		}
-		// xxx: why not REPORT_WEAPON
-		case "REPORT_WEAPONS": {
+		case "REPORT_WEAPON": {
 			const match = notFoundIfFalsy(await SQMatchRepository.findById(matchId));
 
 			const members = [
@@ -148,26 +145,12 @@ export const action = async ({ request, params }: ActionFunctionArgs) => {
 				"User is not a member of any group",
 			);
 
-			const oldReportedWeapons =
-				(await ReportedWeaponRepository.findByMatchId(matchId)) ?? [];
-
-			const mergedWeapons = mergeReportedWeapons({
-				oldWeapons: oldReportedWeapons,
-				newWeapons: data.weapons as (ReportedWeapon & {
-					mapIndex: number;
-					groupMatchMapId: number;
-				})[],
+			await ReportedWeaponRepository.upsertOne({
+				groupMatchMapId: data.groupMatchMapId,
+				userId: user.id,
+				weaponSplId: data.weaponSplId,
 			});
 
-			await ReportedWeaponRepository.replaceByMatchId(
-				matchId,
-				mergedWeapons.map((w) => ({
-					groupMatchMapId: w.groupMatchMapId,
-					userId: w.userId,
-					weaponSplId: w.weaponSplId,
-				})),
-			);
-
 			break;
 		}
 		case "UNDO_WEAPON_REPORT": {
diff --git a/app/features/sendouq-match/components/SendouQMatchActionTab.tsx b/app/features/sendouq-match/components/SendouQMatchActionTab.tsx
index a6df614dc..ce129c226 100644
--- a/app/features/sendouq-match/components/SendouQMatchActionTab.tsx
+++ b/app/features/sendouq-match/components/SendouQMatchActionTab.tsx
@@ -185,15 +185,9 @@ export function SendouQMatchActionTab({
 					const map = data.match.mapList[mapIndex];
 					weaponFetcher.submit(
 						{
-							_action: "REPORT_WEAPONS",
-							weapons: JSON.stringify([
-								{
-									weaponSplId,
-									userId: ownUserId,
-									mapIndex,
-									groupMatchMapId: map.id,
-								},
-							]),
+							_action: "REPORT_WEAPON",
+							weaponSplId: String(weaponSplId),
+							groupMatchMapId: String(map.id),
 						},
 						{ method: "post" },
 					);
diff --git a/app/features/sendouq-match/q-match-schemas.ts b/app/features/sendouq-match/q-match-schemas.ts
index d374a96aa..4e6430f07 100644
--- a/app/features/sendouq-match/q-match-schemas.ts
+++ b/app/features/sendouq-match/q-match-schemas.ts
@@ -1,27 +1,7 @@
 import { z } from "zod";
 import { SENDOUQ } from "~/features/sendouq/q-constants";
-import {
-	_action,
-	falsyToNull,
-	id,
-	safeJSONParse,
-	weaponSplId,
-} from "~/utils/zod";
+import { _action, falsyToNull, id, weaponSplId } from "~/utils/zod";
 
-const weapons = z.preprocess(
-	safeJSONParse,
-	z
-		.array(
-			z.object({
-				weaponSplId,
-				userId: id,
-				mapIndex: z.number().int().nonnegative(),
-				groupMatchMapId: id,
-			}),
-		)
-		.optional()
-		.default([]),
-);
 export const matchSchema = z.union([
 	z.object({
 		_action: _action("REPORT_SCORE"),
@@ -33,8 +13,9 @@ export const matchSchema = z.union([
 		previousGroupId: id,
 	}),
 	z.object({
-		_action: _action("REPORT_WEAPONS"),
-		weapons,
+		_action: _action("REPORT_WEAPON"),
+		weaponSplId,
+		groupMatchMapId: id,
 	}),
 	z.object({
 		_action: _action("ADD_PRIVATE_USER_NOTE"),