C4 (also labeled Demolition Charge) isn’t available out of the box in Battlefield 6. It’s tied to the Recon class and locked behind a mid‑progression assignment that opens at player rank 20. The short version: hit rank 20, complete an objective‑spotting challenge as Recon, then equip C4 in your Recon loadout. Expect three charges by default, which won’t solo-delete heavy armor without help.

Battlefield 6 C4 unlock requirements (Recon)

Requirement What to do Notes
Player rank Reach Rank/Level 20 This gate must be met before the C4 challenge becomes available.
Class restriction Use the Recon class C4 is tied to Recon; other classes don’t get it.
Assignment goal Spot enemies with Recon equipment in objective areas The target count is high (expect hundreds); you’ll also need to earn the required Recon score as part of the assignment.
Best mode to progress Breakthrough (attack or defend) Objective zones funnel players, so objective spots accrue far faster than in free‑flow modes.

Fastest way to finish the objective‑spotting challenge

Setup Action in match Why it works
Equip the Recon Drone XFGM‑6D Deploy the drone over active objectives and continuously spot enemies within the capture/defend zones Drone pings count as equipment spots and register as objective spots when targets are in or contesting the zone
Queue Breakthrough Prioritize sectors under heavy contest; if attacking, hover the next point before your team pushes Enemy density around objectives accelerates the count; multiple enemies get tagged per sweep
Stay alive as Recon Cycle drone quickly after redeploys and keep line‑of‑sight on objectives Consistent uptime maximizes spots and builds the required Recon score in parallel
Tip: On dense layouts like Manhattan Bridge, attacking in Breakthrough can rack up objective spots extraordinarily fast when defenders stack the point.

How to equip and use C4 after you unlock it

Step Where Outcome
Add C4 (Demolition Charge) to your loadout Recon loadout → gadget slot C4 becomes selectable for matches on Recon only
Deploy charges Close to vehicles, objectives, doors, or chokepoints Place up to three charges at a time; stack for burst damage
Detonate After placing or after luring vehicles/infantry into range Remote detonation for synchronized damage; time blasts with team pushes

Baseline carry is three charges. That isn’t enough to destroy heavy armored vehicles on its own, so plan for follow‑up damage or coordinate with teammates. Use C4 to finish already damaged armor, to trap narrow approaches, or to instantly remove light vehicles that overextend.

What C4 can and can’t do in Battlefield 6

Capability Details
Class access Recon only; other classes can’t equip C4
Charge count Three charges by default
Heavy armor Three charges won’t solo the toughest vehicles; combine with team fire or additional explosives
Achievement chase The “A Little C‑4 Knocking On Your Door” trophy/achievement requires dealing 2000 damage to enemy vehicles

Troubleshooting slow progress on the spotting assignment

Symptom Fix
Spots aren’t counting quickly Ensure enemies are inside objective zones when spotted; only those count toward the objective‑spot requirement
Low enemy density Swap servers or maps; join in‑progress Breakthrough matches where sectors are heavily contested
Frequent deaths interrupting drone use Play slightly off the point; deploy the drone from cover, and reposition after each sector is captured

Once the assignment completes, C4 becomes a reliable Recon tool for area denial and vehicle denial—especially when layered with team damage. If you’re targeting the vehicle‑damage achievement, focus on light armor and damaged heavies to bank progress efficiently.