Raid is unreasonably difficult in solo

Way too many tanks, way too many enemies at once, they always seem to know where you are at all times, come at you in waves, have next to no healing opportunities except the one medkit you bring on the mission, and never enough ammo for how long the missions take.

The rest of the game feels totally fairly balanced, but the Raid is just completely impenetrable in solo. Needs to give the player way more opportunity to heal and replenish ammo, and reduce enemy count. One of the missions said to eliminate 13 MERX which costed me my entire ammo supply since three of them were tanks, and it even added about a dozen unspecified MERX which didn’t count towards the kill total for the mission.