is fighting Halle Berry
's attempt to slash his child support by more than 75% ... because her husband beat the crap out of him so bad he can't get work, but the photos tell a different story.
TMZ has obtained documents filed in their never-ending custody and support war. We broke the story ... Halle is trying to reduce Gabriel's child support for 6-year-old Nahla from $16K a month to around $3,800 a month.
Gabriel refers to the Thanksgiving day fight in Halle's driveway back in 2012, in which he accuses Olivier Martinez
of a sneak attack that pulverized his face. He says it took him 6 months to heal before he could possibly work again, and since then he's only gotten 3 gigs.
But we checked out photos of Gabriel, and just 6 weeks after the fight there's barely a sign of injury.
Halle attacks Gabriel as a deadbeat who is using child support to avoid having to work. She says, "There is no case, no law, no logic that says a healthy, active man gets to simply live off child support that the wealthier mother earns."
And in Halle's docs, her lawyer, Steve Kolodny
, says Gabriel uses monthly child support for his own needs, including:
$740 a month for Gabriel's "Fitness"
$940 a month in clothing (Gabriel lists Nahla's clothing expenses separately -- $675 a month)
$700 a month for Gabriel's health insurance
$1,975 a month in car expenses
$1,100 a month in furniture and electronics
Halle splits custody with Gabriel 50/50. She wants to convince a judge ... during her 50% custody, Gabriel should get off his ass and get a job.